Correct Answer: B

Rationale: The correct answer is B: Comma splice. A comma splice is present in the sentence, where two independent clauses are incorrectly joined by a comma. In this case, 'Some workers use all their sick leave' and 'other workers cash out their leave' are two independent clauses that should be separated by a conjunction or a stronger punctuation mark like a semicolon or period. Choice A, parallelism, is incorrect because the error in the sentence is not related to maintaining parallel structure. Choice C, sentence fragment, is incorrect as the sentence contains two independent clauses, not fragments. Choice D, subject-verb agreement, is also incorrect as the error in the sentence does not involve agreement between subjects and verbs.

Correct Answer: D

Rationale: The correct answer is 'D: As a result.' This choice effectively ties Hampton's desire for social change to his ongoing efforts and achievements. 'As a result' indicates a logical connection between Hampton's aspirations and the actions he took to achieve them. Choices B, C, and A are incorrect because they do not provide a suitable transition that connects Hampton's goals with his actions or achievements. 'Unfortunately' (choice B) introduces a negative connotation that is not appropriate in this context. 'Finally' (choice C) suggests a chronological sequence rather than a cause-and-effect relationship. 'NO CHANGE' (choice A) does not establish a clear link between Hampton's desires and his efforts for social change.

Correct Answer: D

Rationale: The correct answer is 'D' because the phrase 'and played an instrumental role' provides a smoother transition between the two ideas. In this context, using 'and' helps to connect the two activities more effectively. Choice 'B' introduces a contrasting conjunction 'but,' which is not suitable in this context where the actions are related. Choice 'C' incorrectly separates the two actions into distinct sentences, affecting the flow and coherence of the paragraph. Therefore, 'D' is the best choice for combining the sentences for clarity and flow.

Correct Answer: B

Rationale: The correct answer is B: Comma splice. A comma splice is present in the sentence, where two independent clauses are incorrectly joined by a comma. In this case, 'Some workers use all their sick leave' and 'other workers cash out their leave' are two independent clauses that should be separated by a conjunction or a stronger punctuation mark like a semicolon or period. Choice A, parallelism, is incorrect because the error in the sentence is not related to maintaining parallel structure. Choice C, sentence fragment, is incorrect as the sentence contains two independent clauses, not fragments. Choice D, subject-verb agreement, is also incorrect as the error in the sentence does not involve agreement between subjects and verbs.

Correct Answer: C

Rationale: Choice C, 'enabled him to quickly rise,' is the correct answer as it maintains the past tense to match the context of the sentence. The sentence describes actions that have already occurred, so the past tense 'enabled' is appropriate. Choice A is incorrect as it does not provide the correct tense for the sentence. Choice B is incorrect as it uses the present continuous tense, which is not suitable for the context of the sentence. Choice D is incorrect as it uses the future tense, which does not align with the past actions described in the sentence.