单项选择题
A.(15,2,4,18,16,5,8,24,17,9,13,25) B.(2,9,4,25,15,16,13,18,17,5,8,24) C.(9,4,16,15,2,13,18,17,5,8,24,25) D.(9,16,4,25,2,15,13,18,5,17,8,24)
A.6 B.7 C.8 D.9