Suppose the U.S. dollar substantially depreciates against the Japanese yen. The change in exchange rate

A) will tend to strengthen the competitive position of Japanese car makers at the expense of U.S. makers.

B) will tend to strengthen the competitive position of import-competing U.S. car makers.

C) will tend to weaken the competitive position of import-competing U.S. car makers.

D) none of the options

and why?