The U.S. Supply of Japanese Yen Is

The U.S. supply of Japanese yen is

A) downsloping because a lower dollar price of yen means U.S. goods are cheaper to the Japanese.
B) upsloping because when the dollar price of yen rises (and the yen price of a dollar falls) it means that U.S. goods are cheaper to the Japanese.
C) upsloping because when the dollar price of yen falls (and the yen price of a dollar rises) it means that U.S. goods are cheaper to the Japanese.
D) downsloping because a higher dollar price of yen means U.S. goods are cheaper to the Japanese.