Where Would a Country Such as Japan Get U

Multiple Choice

Where would a country such as Japan get U.S.dollars in order to engage in managed float?

A) It would print them.
B) It would use its reserve of dollars.
C) It would sell yen on the open market in exchange for U.S.dollars.
D) Since Japan's currency is the yen,it would not be able to obtain U.S.dollars.
E) It would borrow U.S.dollars form the U.S.