In Mendel's Peas, Yellow Seeds Are Dominant to Green

Multiple Choice

In Mendel's peas, yellow seeds are dominant to green. A pure-breeding yellow plant is crossed with a pure-breeding green plant. All of the offspring are yellow. If one of these yellow offspring is crossed with a green plant, what will be the expected proportion of plants with green seeds in the next generation?

A) 0%
B) 25%
C) 50%
D) 75%
E) 100%