Correct Answer: C

Rationale: In the sentence, 'widely' is used as an adverb. It modifies the adjective 'available,' describing the extent to which professional dental care is available. An adverb can modify verbs, adjectives, or other adverbs. In this case, 'widely' modifies the adjective 'available,' making it an adverb. Choice A, 'adjective,' is incorrect because 'widely' is not describing a noun. Choice B, 'noun,' is incorrect because 'widely' is not a noun. Choice D, 'verb,' is incorrect because 'widely' is not being used as a verb in the sentence.

Correct Answer: C

Rationale: Option C is the correct answer because it disrupts the flow of the sentence and introduces unnecessary information. The phrase 'over the years since 1958' is irrelevant in this context and does not contribute to the intended meaning of the sentence. The sentence is focused on the recent changes to the pension, not its historical evolution. Choices A, B, and D provide clear and concise ways to revise and combine the underlined portion of the sentences, maintaining a logical and relevant sentence structure.

Correct Answer: C

Rationale: Sentence C correctly maintains the pronoun-antecedent agreement. In this sentence, the antecedent is 'number of people,' and the pronoun 'it' is used to refer back to this antecedent. The singular pronoun 'it' matches the singular antecedent 'number,' making the sentence grammatically correct. Choice A is incorrect because it uses the plural pronoun 'they' to refer back to the singular antecedent 'storm.' Choice B is incorrect as it uses the plural pronoun 'they' to refer back to the singular antecedent 'each of the cars.' Choice D is incorrect because it uses the singular pronoun 'he or she' to refer back to the plural antecedent 'many people.' This creates a lack of agreement between the pronoun and its antecedent.

Correct Answer: C

Rationale: The comma (,) is used to separate the introductory clause 'After a twelve-hour workday' from the main clause 'James was exhausted when he heard the news.' This punctuation correctly indicates the relationship between the two clauses without interrupting the flow of the sentence. Choice A (.), a period, would create two separate sentences, which is not appropriate in this context. Choice B (;) is too strong of a pause and semicolons are typically used to connect closely related independent clauses. Choice D (-) is an em dash, which is used to set off an abrupt break or interruption in the sentence, not to separate an introductory clause from the main clause.

Correct Answer: D

Rationale: In this context, 'disciplines' refers to specific areas of study or fields of expertise. Therefore, the most appropriate synonym for 'disciplines' would be 'fields.' Options A, B, and C do not accurately convey the meaning of 'disciplines' in the given sentence. 'Locations' and 'regions' refer to physical places, while 'punishments' is entirely unrelated to the context of academic or professional fields of study.