Correct Answer: A

Rationale: The word 'thunderous' is the most suitable choice in this context. It accurately conveys the idea of loud, intense, and enthusiastic applause, which aligns with the significance of the breakthrough mentioned in the sentence. 'Scattered,' 'polite,' and 'hesitant' do not adequately capture the level of excitement and appreciation conveyed by the word 'thunderous' in the context of a significant scientific breakthrough.

Correct Answer: C

Rationale: In this context, 'study' is a verb, not a noun. 'Studied' is the past tense form of the verb 'study.' The plural form of a verb does not exist in the same way as it does for nouns. 'Studied' is the correct form for the past tense of 'study,' not a plural form. 'Studies' (choice A) is the third-person singular present tense form of 'study,' 'studying' (choice B) is the present participle form, and 'studier' (choice D) is not a correct form related to the verb 'study.' Therefore, 'studied' is the most appropriate choice here.

Correct Answer: A

Rationale: The word 'thunderous' is the most suitable choice in this context. It accurately conveys the idea of loud, intense, and enthusiastic applause, which aligns with the significance of the breakthrough mentioned in the sentence. 'Scattered,' 'polite,' and 'hesitant' do not adequately capture the level of excitement and appreciation conveyed by the word 'thunderous' in the context of a significant scientific breakthrough.

Correct Answer: C

Rationale: The sentence 'Wow, what a beautiful sunset!' expresses strong emotion ('Wow') and conveys an exclamation, indicating that it is an exclamatory sentence. Exclamatory sentences are used to show strong feelings or emotions and typically end with an exclamation mark. Choice A, 'Interrogative sentence,' is incorrect because interrogative sentences ask questions, which this sentence does not. Choice B, 'Declarative sentence,' is incorrect because declarative sentences make statements or convey information, which is not the case here. Choice D, 'Imperative sentence,' is incorrect because imperative sentences give commands or instructions, which are not present in the given sentence.

Correct Answer: C

Rationale: In technical writing, the primary goal is to explain complex concepts clearly and concisely for diverse readers. Using informal language (Choice A) can undermine the professionalism and clarity expected in technical documents. Emphasizing expertise with complex jargon (Choice B) may alienate readers who are not familiar with technical terminology. Prioritizing creativity and artistic flair (Choice D) may be misleading in technical writing, as the focus should be on clarity and accuracy rather than creative expression. Therefore, the correct choice is to explain concepts clearly and concisely for diverse readers, ensuring that the content is easily understandable and accessible.