waha1ha1

C knows the answer by deducing D is not yelling out the answer.
; Y. g' W) g' o8 }% t8 N$ c/ jTVBNOW 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.4 B9 M5 s- A1 d. e! ~
C saw B is wearing the white, hence he is wearing the black