Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions:
Figure: Foreign Trade Market
-Which, if any, of the following conditions for efficient market functioning do tariffs and quotas violate?
I. demanders with the highest willingness to pay purchase the supply of goods
II. producers with the lowest costs produce and sell the supply of goods
III. the sum of consumer and producer surplus is maximized

A) I only
B) II and III only
C) I, II, and III
D) III only