C knows the answer by deducing D is not yelling out the answer.
2 D% ^' C( q. ~( QTVBNOW 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。That means D is not sure the answer by seeing one white and one black.
% z3 n! l. D0 ?: @ x% STVBNOW 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。C saw B is wearing the white, hence he is wearing the black |