Complete the following sentences.

the two main reasons why international trade is restricted are that tariffs

a. create tariff revenue and rent seeking is popular
b. protect infant industries from competition and protect national security
c. save jobs and allow domestic producers to compete with foreign firms that use cheap labor
d. penalize lax environmental standards and protect defense industries

the countries that benefit most from tariff revenue are

a. developing countries
b. developed countries
c. countries involved in trade organizations but are separated by large distances
d. countries involved in trade agreements such as nafta and the european union

the united states still implements some trade restrictions because

a. the people who would lose from free trade would lose big and the people who gain, would gain a small amount.
b. tariff revenue is the largest form of revenue earned by the u. s. government
c. rent seeking increases consumer surplus
d. it is the best way to protect u. s. jobs