Which Statement Is True

Which statement is true?

A) Most of our recent presidents support fair trade rather than free trade.
B) International trade flourished during the 1930s,despite the worldwide depression.
C) The General Agreement on Trade and Tariffs (GATT) treaty of 1947 was largely ineffective in attempts to lower trade barriers between nations.
D) Many Americans,especially labor union members and environmentalists,prefer what they call "fair trade."