Which Statement Is True

Which statement is true?

A) Until 1971,the U.S.ran a trade deficit virtually every year of the 20^th century.
B) The U.S.ran trade surpluses for most of the 19^th century.
C) In the 1920s,the U.S.flooded the rest of the world with consumer goods such as Model T Fords,radios and waffle irons as our trade surpluses increased.
D) Until after WWII most of U.S.exports were agricultural products,such as cotton and grain sent to Europe.