please show computation

3) If the current exchange rate is 113 Japanese yen per U.S. dollar, the price of a Big Mac hamburger in the United States is $3.41, and the price of a Big Mac hamburger in Japan is 280 yen, then other things equal, the Big Mac hamburger in Japan is:

A) correctly priced.

B) under priced.

C) over priced.

D) There is not enough information to determine if the price is appropriate or not.