Which sentence is punctuated correctly?

Correct Answer: C

Rationale: Choice C is the correct answer. The sentence is punctuated correctly with commas separating the city, state, and the rest of the sentence. In Choice A, there should be a comma after 'California' to correctly separate the city and state. Choice B lacks a comma after 'California,' creating a run-on sentence. Choice D incorrectly uses a comma before the year '2011,' which disrupts the flow of the sentence.

Correct Answer: B

Rationale: The correct answer is B. Parallel structure ensures that items in a series or list are in the same grammatical form. In choice A, 'to run' disrupts the parallel structure since 'hiking' and 'swimming' are gerunds. Choice C similarly breaks the parallelism by using 'to swim' in a different form. Choice D is incorrect because it lacks consistent parallelism, as 'hiking' is not followed by gerunds like 'swimming' and 'running.' Therefore, only choice B maintains proper parallel structure by using gerunds ('hiking,' 'swimming,' and 'running') consistently.

Correct Answer: A

Rationale: The correct answer is 'as a result.' This transition word is most suitable in this context as it indicates a logical consequence. The old clock not working for years led to Ally deciding to take it off the wall. Choices B, C, and D are incorrect. 'Conversely' suggests a contrast, 'then again' implies reconsideration or a contrasting point, and 'similarly' indicates a comparison, none of which align with the cause-and-effect relationship presented in the sentence.

Correct Answer: C

Rationale: 'Childlike' is an adjective formed by adding the suffix '-like' to the noun 'child.' The suffix '-like' is commonly used to transform a noun into an adjective by indicating a resemblance or characteristic associated with the root noun. Choices A, B, and D do not follow the same pattern. 'Created' is a past participle, 'pointing' is a present participle, and 'suburbanite' is a noun derived from 'suburban.' Therefore, 'Childlike' is the only word where the suffix directly converts the root word into an adjective.

Correct Answer: B

Rationale: Choice B is the correct answer because it serves as a transition sentence in the paragraph about the Silk Road. It shifts the focus from Chinese silk being a major trade item to the introduction of other important trade items that had a significant impact on the world. This transition indicates a change in the topic being discussed within the paragraph. Choices A, C, and D do not serve as transition sentences. Choice A simply introduces the origin of the Silk Road's name, choice C provides additional information about the network without transitioning to a new topic, and choice D gives a general description of the Silk Road without transitioning to a different aspect of the trade routes.

Correct Answer: A

Rationale: The correct contraction to use in this sentence is 'who's,' which is short for 'who is.' In the given context, 'who's' indicates the correct possessive form, clarifying that the clients are confused about who is in charge. Choice B, 'Whos,' is incorrect as it does not use an apostrophe to indicate the omitted letter. Choice C, 'Who'll,' is incorrect as it is a contraction for 'who will,' which does not fit the context of the sentence. Choice D, 'Who,' is incorrect as it is not a contraction and does not clarify the intended meaning of the sentence.

Correct Answer: C

Rationale: Choice C is the correct answer. The sentence is punctuated correctly with commas separating the city, state, and the rest of the sentence. In Choice A, there should be a comma after 'California' to correctly separate the city and state. Choice B lacks a comma after 'California,' creating a run-on sentence. Choice D incorrectly uses a comma before the year '2011,' which disrupts the flow of the sentence.

Correct Answer: A

Rationale: The comma after 'think' is unnecessary and incorrect. It should be removed to correct the sentence. The semicolon after 'do' is correct as it separates two independent clauses. The period at the end of the sentence is necessary to indicate the end of the sentence. The comma after 'and yet' is correctly used to separate two independent clauses joined by a coordinating conjunction.

Correct Answer: A

Rationale: The correct answer is 'Peer-reviewed articles.' Peer-reviewed articles are considered highly reliable because they undergo a rigorous evaluation process by experts in the field before publication. This process ensures that the research presented is of high quality and meets academic standards. Choice B, 'Wikipedia,' is not considered a reliable source for scholarly research as it can be edited by anyone, leading to potential inaccuracies. Choice C, 'Opinion articles from a newspaper,' may provide perspectives but may not always be based on rigorous research or evidence. Choice D, 'Blogs and other social media,' lack the rigorous review process that peer-reviewed articles undergo, making them less reliable for scholarly research.