设集合U={1,2,3,4,5},A={2,4},B={3,4,5},C={3,4},则(AB) =        .

A.{1,2,4}                                                               B.{4}

C.{3,5}                                                                  D.

A.{2}                 B.{2，3}         C.{3}            D.{1，3}

设集合U={1,2,3,4,5},A={1,2,4},B={2},则A∩(B)等于

A.{1,2,3,4,5}  B.{1,4}  C.{1,2,4}  D.{3,5}