71. 已知邏輯電路如下圖,下列輸出函數何者正確?(A)Y1 (A,B,C )=Σ (0,2,3,5 )(B)Y1 (A,B,C )=Σ (0,3,5 )(C)Y2 (A,B,C )=Σ (5,7 )(D)Y2 (A,B,C )=Σ (5,6 )。