16.假設F1(A,B,C,D)=Σ(0,2,5,6,8,10,13)、F2(A,B,C,D)=Π(1,3,5,7,10,13,15),則下列敘述何者 錯誤 ?(A)F1+F2=Π(1,3,7,15)(B)F1.F2=Σ(0,2,6,8)(C)F1⊕F2=Σ(4,5,7,9,10,11,12,14)(D)