If Speculators Lost Confidence in Foreign Economies and So Wanted

Multiple Choice

If speculators lost confidence in foreign economies and so wanted to buy more U.S.bonds

A) the dollar would appreciate which would cause aggregate demand to shift right.
B) the dollar would appreciate which would cause aggregate demand to shift left.
C) the dollar would depreciate which would cause aggregate demand to shift right.
D) the dollar would depreciate which would cause aggregate demand to shift left.