waha1ha1

C knows the answer by deducing D is not yelling out the answer.tvb now,tvbnow,bttvb9 n% P9 I! X1 R
That means D is not sure the answer by seeing one white and one black.www.tvboxnow.com2 b- A" |! }: G9 d
C saw B is wearing the white, hence he is wearing the black