Assume the one-year forward rate for the British pound is 6.6381 - $1. The spot rate is 6392 - $1. The interest rate on a risk-free asset in the UK is 4.4 percent. If interest rate parity exists, what is the one-year risk-free rate in the U.S.? 4.68 percent 4.58 percent O O O 4.77 percent O 4.63 percent 4.67 percent