Which of the following trade policies will prevent a foreign supplier to sell even one unit of the good in the domestic market?

Question

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An import ban is a complete prohibition on the importation of a particular good or service, thus preventing foreign suppliers from selling even one unit of the good in the domestic market. Import quotas limit the quantity of goods that can be imported, but still allow some amount to be sold domestically. Voluntary export restraints are agreements between governments where the foreign supplier agrees to limit their exports to a certain amount, but again, some amount can still be sold domestically. Import tariffs are taxes levied on imported goods and do not necessarily prevent the sale of foreign goods in the domestic market.

Which of the Following Trade Policies Will Prevent a Foreign