Suppose the Exchange Rate Between the Canadian Dollar and the Japanese

Multiple Choice

Suppose the exchange rate between the Canadian dollar and the Japanese yen was $1 = 220 yen in 2012.,In 2014, the exchange rate was $1 = 100 yen.Refer to the above information.Which one of the following might be a plausible explanation for the change in the dollar-yen exchange rate in 2014?

A) During the period, Japan exported more to Canada than it imported from Canada.
B) Japan increased its purchases from Canada during the period.
C) Japan's growth of national income was more rapid than that of the Canadian economy during the period.
D) Japan's government devalued the yen during the period.