When the Exchange Rate for the British Pound Changes from $1.80

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