Everything else held constant, when a country's currency appreciates, financial investors living in this country may be able to more foreign assets at the same fund or ___ the same amount of foreign asset more . Therefore, the appreciation of domestic currency is for financial investor, though it may be 

A) sell; dearly; bad; good for exporters. 

B) buy; cheaply; good; bad 

C) exchange; efficiently; medium of exchange; store of value 

D) exchange, dearly; store of value; medium of exchange.