C knows the answer by deducing D is not yelling out the answer. m0 R- b3 k- \, h5 ?tvb now,tvbnow,bttvbThat means D is not sure the answer by seeing one white and one black. 0 j. r- T* O' p4 hwww3.tvboxnow.comC saw B is wearing the white, hence he is wearing the black
C, because he saw B's hat is white and he knows D can see the color of B's and his hat. If B and his hat has the same color, D would speak out. But D kept silent, so C knows that his hat's color must be different.