Suppose that China maintains a fixed exchange rate for its currency (the Yuan) against the U.S. dollar. If the equilibrium price of Yuan in the foreign exchange market is below the government's target price of Yuan, the Chinese government will need to. in the market in order to maintain the target price of Yuan.

a. Buy Yuan

b. Sell Yuan

c. Buy dollars 

d. Sell dollars 

e. a and d are correct

f. b and c are correct