In terms of mercantilism, what is protectionism?

A. A political policy that states that a nation should take over foreign ports by force if necessary to insure healthy trading relations.

B. An economic policy in which a nation spends a great deal of money on its navy in order to defend it merchant ships.

C. A trade policy that involves undercutting the prices of another nation's goods at all costs.

D. A trade policy that encourages exports while discouraging imports, mainly through tariffs.

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Explanation:

Protectionism is the economic policy of restraining trade between states (countries) through methods such as tariffs on imported goods, restrictive quotas, and a variety of other government regulations designed to allow (according to proponents) fair competition between imports and goods and services produced

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explanation: i just want to

i believe it is the second one.   if correct plz mark brainliest.