Why Is Color-Blindness More Common in Males Than in Females

Multiple Choice

Why is color-blindness more common in males than in females?

A) Because females would have to receive one copy of the recessive color blindness gene to actually express the trait.
B) Because a male only needs to receive the recessive gene from his mother to be color-blind.
C) Because color-blindness is an Y-linked trait.
D) Females are hemizygous
E) Males are never hemizygous