In 1937, President Roosevelt Announced That If a Warring Nation

In 1937, President Roosevelt announced that if a warring nation were to try and purchase military goods from the United States, they should expect to

A) no longer trade with the United States.
B) receive the support of U.S.troops as well.
C) pay cash for the items, and find a way to carry it back to their nation.
D) run into problems with German submarines.
E) pay a sizeable down payment and a war tax, since the United States was neutral.