In Figure 17

In Figure 17.5a, none of the F₂ females has white eyes. Why?

A) F₂ females have two X chromosomes, and in this cross all F₂ females are homozygous for the red-eye allele.
B) F₂ females have two X chromosomes, and in this cross they all have one X carrying a red-eye allele and another X carrying a white-eye allele.
C) Females can never have white eyes because this allele is recessive.
D) The allele for red eyes is dominant over white eyes, and these F₂ females are either homozygous dominant (red-eye allele) or are heterozygous.
E) Females always have red eyes because this allele is dominant.