选择题
2002 AMC 8 Problem 8: European Stamps from the 80s
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. How many of Juan's European stamps were issued in the '80s?
A.
9
B.
15
C.
18
D.
24
E.
42