C knows the answer by deducing D is not yelling out the answer.tvb now,tvbnow,bttvb3 r; ?3 h; E7 {' L d
That means D is not sure the answer by seeing one white and one black.公仔箱論壇/ J' n. ]7 j- J! w6 M
C saw B is wearing the white, hence he is wearing the black |