When the exchange rate for the British pound changes from $1.80 per pound to $1.60 per pound, then, holding everything else constant, the pound has ________ and ________ expensive.
A) appreciated; British cars sold in the United States become more
B) appreciated; British cars sold in the United States become less
C) depreciated; American wheat sold in Britain becomes more
D) depreciated; American wheat sold in Britain becomes less