Suppose the exchange rates are 0.5 British Pound per dollar; 10 Mexican Pesos per dollar; and 100 Chinese Yuan per dollar. Further suppose that a Big Mac costs 3 dollars in America; 2 pounds in England; 50 pesos in Mexico; and 200 yuan in China. In which country is a Big Mac most expensive?
(A)America ($3). (B)England ($4). (C)Mexico ($5). (D)China ($2).
C