The annual interest rate on US corporate bonds is 0.05 while corporate bonds in Brazil carry an interest rate of 0.25. The current exchange rate is 3.0- as it costs 3.0 dollars to purchase one unit of Brazilian currency. You expect that the exchange rate will be 2.0 in a year. The expected return on investing in Brazil equals.

A)-0.25

B)0.15

C)-0.25

D)0.20