Which of the Following Situations Is Most Likely to Strengthen

Multiple Choice

Which of the following situations is most likely to strengthen the yen's value against the dollar? Assume everything else is held constant.​

A) ​a reduction in U.S. inflation accompanied by an increase in Japan's inflation
B) ​a reduction in U.S. inflation accompanied by an increase in U.S. interest rates
C) ​an increase in U.S. inflation accompanied by no change in U.S. nominal interest rates
D) ​a reduction in Japan's inflation accompanied by an increase in Japan's interest rates