Countries a and B Both Produce Coffee

Multiple Choice

Countries A and B both produce coffee. Both countries belong to GATT. Country A imports coffee from B. Once B's coffee enters A's stream of commerce, under the national treatment provisions of GATT:

A) country A cannot subject B's coffee to higher internal taxes or charges than its domestic coffee.
B) country A may now charge higher internal taxes or charges on B's coffee in order to discourage coffee drinking since the goods have already passed the border.
C) country A cannot subject B's coffee to any internal taxes or charges, even if it does so to domestic coffee.
D) none of the above is correct.