The united states allows a certain amount of foreign cheese into the country each year. which of the following is this an example of?
a. embargo
b. import quota
c. protectionism
d. voluntary trade restriction

The answer is import quota; the limit of a product a country can buy abroad and sell domestically.

Embargo - no trade allowed between countries with poor political circumstances
Protectionism - Method used by countries to protect goods (e.g. tariffs)
Voluntary trade restriction - Limit on EXPORTS