What are tariffs? A. Regulations that halt trade between countries B. Taxes or fees that are charged to move goods in or out of a country C. Regulations that began when NAFTA was signed D. Fines for illegally transporting goods over borders

B. taxes or fees that are charged to move goods in or out of a country

Explanation:

A tariff is a tax on imports or exports between sovereign states. It is a form of regulation of foreign trade and a policy that taxes foreign products to encourage or safeguard domestic industry. Traditionally, states have used them as a source of income.

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your answer would be (b)