PSAT Writing and Language Question 135: Answer and Explanation

Question: 135

• A. NO CHANGE
• B. adenine (A), thymine (T), guanine (G), and cytosine (C).
• C. adenine (A), thymine (T) guanine (G) and cytosine (C).
• D. adenine (A) thymine (T), guanine (G) and cytosine (C).

Correct Answer: B

Explanation:

B

Difficulty: Easy

Category: Sentence Structure: Commas, Dashes, and Colons

Getting to the Answer: Study the words in a series and see where a comma might need to be inserted or eliminated. Choice (B) is correct.