Which of the following products from Latin America cannot be traded in the United States?

A. Mexican Machinery

B. Costa Rican Bananas

C. Guatemalan coffee

D. Cuban Sugar

The question here refers to the US embargo on Cuban products - which includes sugar, as sugar is something in which Cuba specializes - so the correct answer is D.

There is no embargo on any of the other countries and everything except on products deemed dangerous can be imported.