Answer:
B. depreciate in value.
Step-by-step explanation:
In the past, the US dollar used to buy more British pounds than it does at the moment. This means that the pound has depreciated in value, as each pound costs less in US dollars than it did in the past. This also means that someone who wants to exchange dollars for pounds is in a better position than before, while someone who wants to exchange pounds for dollars is in a worse position.