Awoman is heterozygous for a rare dominant autosomal genetic disease, neurofibromatosis. she marries a normal man (homozygous recessive for neurofibromatosis), who has red-green color blindness, an x-linked recessive trait. they have children. what is the chance they will have a girl with neurofibromatosis?
a. 25%
b. 0%
c. 50%
d. 100%