When only a specified amount of a good can be imported into a country during a year,that good is subject to a(n)

A) subsidy.
B) tariff.
C) quota.
D) export restriction.

When a country imposes a limit on the quantity of a good that can be imported into the country during a certain period, it is called a quota. Quotas are different from tariffs and subsidies, which either impose taxes or offer financial assistance on imported goods. Export restrictions are policies that limit the exportation of goods from a country, and hence, are not relevant when discussing imports.