Due to his many interests and pursuits, Eratosthenes dabbled in a variety of fields, and he is credited with a theory known as the sieve of Eratosthenes. This is an early algorithm used to determine prime numbers. To which section of the library should Jorgen go to find out more about the current applications of the sieve of Eratosthenes?

Correct Answer: D

Rationale: Jorgen should go to the 500 section of the library, which is dedicated to science and mathematics. The sieve of Eratosthenes is a mathematical concept, so current applications and research related to it would be found in this section. Choice A (0) is incorrect as it is for general works. Choice B (100) is for philosophy and psychology, which are unrelated to mathematics. Choice C (400) is for languages, not mathematics.

Correct Answer: C

Rationale: The central idea of the passage is to highlight the significance of understanding insects in ecosystems, not just focusing on their adaptability or life transitions. Choice A is incorrect as the passage does not introduce specific insects transitioning from water to air. Choice B is incorrect as the main focus is not solely on how insects adapt to their environment, but on their broader role in ecosystems. Choice D is incorrect as the passage does not discuss the duality of insect life, but rather their importance in the ecosystem.

Correct Answer: A

Rationale: In the provided text, 'principal' is referring to the primary or chief individual. The principal secretary for private affairs is considered second only to the treasurer, indicating a position of high importance. The term 'acolyte' (Choice B) refers to a ceremonial assistant, which does not fit the context. 'An individual who provides nurturing' (Choice C) and 'One in a subordinate position' (Choice D) do not accurately describe the role of the 'principal' in the text.

Correct Answer: C

Rationale: The correct answer is C, third person omniscient. The author provides insight into the thoughts of multiple characters, such as Michael and Lana June, indicating knowledge beyond what a single character could perceive. This omniscient viewpoint allows readers to understand the perspectives of different individuals, enhancing the depth and complexity of the narrative. Choices A, B, and D are incorrect because the extract demonstrates a narrative style that extends beyond a single character's viewpoint, revealing thoughts and feelings of various characters.

Correct Answer: D

Rationale: The correct answer is D. Letters exchanged by Jules Verne and a close friend would be a primary source as they were written during his lifetime, providing direct insight into his thoughts and actions. Choices A, B, and C are not primary sources. Articles written after his death, reviews of his works, and film adaptations are considered secondary sources as they are interpretations or analyses based on primary materials.

Correct Answer: D

Rationale: The repetition in the passage, especially the reiteration of Mr. Utterson's struggle and the continuous digging at the problem, serves to emphasize Mr. Utterson's internal turmoil and anguish. It highlights his failure to identify Hyde's whereabouts and his increasing obsession with the mystery. Choice A is incorrect because the repetition does not primarily reflect Mr. Lanyon's mental state but focuses on Mr. Utterson's dilemma. Choice B is incorrect as the repetition does not directly relate to the church bells but to Mr. Utterson's persistent contemplation. Choice C is incorrect as the repetition does not specifically mirror Mr. Utterson's ambivalence but rather his distress and preoccupation with the problem.

Correct Answer: A

Rationale: The correct answer is A. The passage indicates that the world powers were already in a combustible situation due to complicated military alliances, making war extremely likely even without the assassination of Archduke Franz Ferdinand. Choice B is incorrect because the passage does not suggest that World War I would never have happened. Choice C is incorrect as it specifically names the countries that would have started the war, which is not supported by the passage. Choice D is also incorrect as the passage does not solely attribute the war's start to Austria.

Correct Answer: C

Rationale: Option C is subjective and personal, making it less suitable for a formal essay about Salvador Dal­. In formal writing, it is important to maintain objectivity and focus on factual information rather than personal opinions. Choices A, B, and D provide relevant information about Dal­, his artwork, and his collaborations, which are more appropriate for inclusion in a formal essay.

Correct Answer: A

Rationale: 'Auspices' is most synonymous with 'patronage' in this context, indicating support or sponsorship. In the provided extract, the author expresses a desire to meet with the working men and their families, indicating a sense of support and sponsorship towards them, aligning with the meaning of 'auspices.' The other choices do not capture the idea of support or sponsorship and are therefore incorrect.