The UN forbid any arms to be sold to Sudan until the civil war ended. This is an example of which trade barrier? A
Argument

B
Tariff

C
Quota

D
Embargo

Correct answer is D . Embargo

Explanation:

D is correct answer as the embargo presents official ban of certain activity, in this case selling guns to the country that is engaged in certain conflict. It is type of economic sanctions that have been imposed.

All other answers are not correct as they are not connected with the statement. They are not banning anything just imposing certain regulations with tariffs and quotas for example.

the correct answer is a

answer; the residents of american samoa elect a nonvoting delegate to congress;