87. The reaction below is catalyzed by yeast alcohol dehydrogenase. Which of the following corresponds to X and Y?
(A) X = NAD + H+ Y = NADH+
(B) X = NADH + H+ Y = NAD+
(C) X = NADPH + H+ Y = NADP+
(D) X = NAD+ Y = NADH + H+
(E) X = NADH+ Y =NAD + H+