Question

a total prohibition against importing certain products is called a(n):
embargo
boycott
tariff
restrictive limit
import quota

Explanation:

An embargo is a complete ban on importing certain products. A boycott is a collective refusal to buy or use products. A tariff is a tax on imports. A restrictive limit is a general term for limitations. An import - quota is a quantitative limit on imports.

Answer:

A. embargo