The Political Wisdom of Choosing a Tariff Acceptable to the Median

The political wisdom of choosing a tariff acceptable to the median U.S. voter is

A) a good example of the principle of the second best.
B) a good example of the way in which actual tariff policies are determined.
C) a good example of the principle of political negotiation.
D) not evident in actual tariff determination.
E) usually evident in actual tariff determination.