Question 30 asks about the preceding passage as a whole.
30. The writer is considering adding the following parenthetical sentence to the essay:
(The hourly wage paid to valets is low; how well they live depends on the tipping behavior of patrons.)
If added, this sentence should be placed after the last sentence of Paragraph:
Your Answer is
Correct Answer is G
Explanation
The added sentence is an explanation of the price of valet parking. The reference to price is in the third paragraph. G is correct.