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: 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: B

Rationale: The correct answer is B. Juggernaut is used to describe something that is powerful and overwhelming, instilling fear. In the passage, Mr. Utterson's mind is toiling and besieged by questions, engaging his imagination and leaving him restless in the darkness of the night. This conveys a sense of fear and being overwhelmed, aligning with the meaning of 'Juggernaut.' Choices A, C, and D are incorrect as they do not relate to the context provided in the passage. The passage does not mention any apparition appearing at daybreak, association with space travel, or Mr. Utterson finding it soothing.

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: D

Rationale: An actuary is a person who assesses insurance risks and premiums. This is the primary role of an actuary, involving the analysis of financial consequences of risk. Choice A is incorrect as actuaries are not medical professionals. Choice B is incorrect as a hospitalist is a physician who works in a hospital, not related to actuarial work. Choice C is incorrect as actuaries are not insurance agents; they focus on risk assessment and not sales.