The Figure Above Shows Supply Curves of Dollars in the Foreign

The figure above shows supply curves of dollars in the foreign exchange market.
-Based on the figure above, which of the following factors could lead the supply curve to shift leftward from S₀ to S₁?

A) a rise in the U.S.exchange rate
B) a fall in the U.S.exchange rate
C) a fall in the U.S.interest rate
D) a rise in expected future U.S.exchange rate
E) a rise in foreign interest rates