Wayne Brown Is a Canadian Citizen Studying on Our Campus

Wayne Brown is a Canadian citizen studying on our campus.When he came to school last fall, he had 400 Canadian dollars (C$) , which at that time were worth $300 U.S.dollars (US$) .When he went back to Canada in June, US$300 could purchase C$450.In June, the U.S.dollar purchased

A) 12.5 percent more Canadian dollars than it did last fall
B) 12.5 percent fewer Canadian dollars than it did last fall
C) 11.11 percent more Canadian dollars than it did last fall
D) 11.11 percent fewer Canadian dollars than it did last fall
E) the same amount of Canadian dollars, in percentage terms, as it did last fall