The Effect of the Lowering in Value of the U

The effect of the lowering in value of the U.S. dollar during Richard Nixon's first term was

A) positive, because U.S. exports increased.
B) negative, because numerous treaties were being used to determine currency values around the world.
C) positive, because China exported cheap products to the United States.
D) negative, because the world economy became unstable.
E) neither positive nor negative; nothing changed with the economy.