The spot rate between Japan and the U.S. is ¥104.02 = $1, while the 1-year forward rate is ¥105.13 = $1. A 1-year risk-free security in the U.S. is yielding 4.2%. What is the rate of return on a 1-year risk-free security in Japan assuming that interest rate parity exists? (Please explain the calculation.)
a. 5.08%
b. 4.67%
c. 5.31%
d. 2.09%
e. 1.88%