21. The writer considers adding the following sentence after Paragraph 2's second sentence:

For some reason, though, only rarely do fish places have valet parking.

The most logical reason for the writer to reject such an addition in this paragraph is because the sentence:

Answer and Explanation

Your Answer is

Correct Answer is A

Explanation

The second paragraph is about the popularity of valet parking in Los Angeles. Sentences added are not relevant to this subject. Item A is correct.