If One British Pound Originally Exchanges for One U

Multiple Choice

If one British pound originally exchanges for one U.S. dollar and then is revalued to exchange for two U.S. dollars, what should happen to U.S. net exports?

A) Since the pound costs more, net exports will increase.
B) Since the dollar costs more, net exports will increase.
C) Since the dollar costs less, net exports will decrease.
D) Since the dollar costs more, net exports will decrease.
E) Since the dollar costs less, net exports will increase.