下列数组中，(）中的数组可以作为离散型随机变量的概率分布.A. (1)/(2), (1)/(4), (1)/(4), (1)/(4)B. (1)/(2), (1)/(4), (1)/(8), (1)/(16)C. (1)/(2), (1)/(4), (1)/(16), (3)/(16)D. (1)/(2), (1)/(4), (3)/(8), -(1)/(8)

A. $\frac{1}{2}$, $\frac{1}{4}$, $\frac{1}{4}$, $\frac{1}{4}$

B. $\frac{1}{2}$, $\frac{1}{4}$, $\frac{1}{8}$, $\frac{1}{16}$

C. $\frac{1}{2}$, $\frac{1}{4}$, $\frac{1}{16}$, $\frac{3}{16}$

D. $\frac{1}{2}$, $\frac{1}{4}$, $\frac{3}{8}$, $-\frac{1}{8}$