What Do Barter Houses Do

What do barter houses do?

A) They specialize in trading goods acquired through barter arrangements.
B) They negotiate barter arrangements with countries that accept the U.S. currency as a countertrade.
C) They specialize in bartering with third countries for unused raw material.
D) They direct bartered goods to the World Trade Organization for its approval.
E) They review disputes in barter arrangements at the request of the International Court of Justice.