PSAT Writing and Language Question 638: Answer and Explanation

Question: 638

• A. NO CHANGE
• B. to go to Mars, however won't
• C. to go to Mars but won't
• D. to go to Mars, and, won't

Correct Answer: C

Explanation:

(C) This is the only choice that does not have an unnecessary comma between the first and second contrasting parts of the sentence. This section of the sentence has only one subject—"volunteers." With only one subject, the two contrasting sections must be linked and therefore not be separated by a comma. Choice (A) is illogical, choice (B) includes an unnecessary pause, and choice (D) has two unnecessary commas.