In Regard to the Baby's Colorblindness, a Sex-Linked Recessive Trait

Multiple Choice

In regard to the baby's colorblindness, a sex-linked recessive trait, you explain that

A) colorblindness often appears randomly, even if neither parent is colorblind.
B) the baby's father must have a recessive allele for colorblindness.
C) since colorblindness is sex-linked, a son can inherit colorblindness if his mother has the recessive colorblindness allele.
D) the eggs must have been accidentally switched, since males inherit sex-linked traits only from their fathers.