单选题

执行以下代码的结果是？ numberGames = {} numberGames[(1,2,4)] = 8 numberGames[(4,2,1)] = 10 numberGames[(1,2)] = 12 sum = 0 for k in numberGames: sum += numberGames[k] len(numberGames) + sum

Question

A.20

B.24

C.30

D.33