PSAT Reading Question 651: Answer and Explanation

Question: 651

Which choice in the passages provides the best evidence for the answer to the previous question?

• A. Lines 8–13 ("Despite . . . trade")
• B. Lines 27–30 ("Intentional . . . exceptions")
• C. Lines 40–44 ("Although . . . environment")
• D. Lines 79–84 ("What's . . . better")

Correct Answer: A

Explanation:

(A) Lines 8–13 best support the idea that an increase in human contact will lead to more accidental introduction of plant species. Choice (B) focuses on the benefits of intentionally introducing invasive plants. Choice (C) mentions the difficulty in predicting the consequences of plant introduction. Choice (D) mentions only one type of invasive plant.