选择题

2002 AMC 8 Problem 10: Average Price of 70s Stamps

Juan organizes the stamps in his collection by country and by the decade in which they were issued. The prices he paid for them at a stamp shop were: Brazil and France, 6 cents each, Peru 4 cents each, and Spain 5 cents each. Brazil and Peru are South American countries, and France and Spain are in Europe. The average price of Juan's '70s stamps is closest to

A.
3.5 cents
B.
4 cents
C.
4.5 cents
D.
5 cents
E.
5.5 cents