C knows the answer by deducing D is not yelling out the answer.tvb now,tvbnow,bttvb6 M6 t, E" m4 F! ^
That means D is not sure the answer by seeing one white and one black.
. O3 D# P0 Z! j! Gtvb now,tvbnow,bttvbC saw B is wearing the white, hence he is wearing the black |