C knows the answer by deducing D is not yelling out the answer.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。 R8 c% I8 R9 I* j4 b! [! z( G
That means D is not sure the answer by seeing one white and one black.tvb now,tvbnow,bttvb8 k* m( e. ^( n0 x/ q# B
C saw B is wearing the white, hence he is wearing the black |