Assume the current U.S. dollar-yen spot rate is 90 ¥/$. Further, the current interest rate in Japan is 1% and 2% in the United States. What is the approximate 180-day forward exchange rate for dollar-yen?
A) ¥89.12/$
B) ¥89.55/$
C) ¥90.89/$
D) ¥90.45/$