Sarah needs to make a cake and some cookies. The cake requires 3/8 cup of sugar and the cookies require 3/5 cup of sugar. Sarah has 15/16 cups of sugar. Does she have enough sugar, or how much more does she need?

A. She has enough sugar.

B. She needs 1/8 of a cup of sugar.

C. She needs 3/80 of a cup of sugar.

D. She needs 4/19 of a cup of sugar.

E. She needs 1/9 of a cup of sugar.