A Man Who Is a Dwarf Due to Achondroplasia and Has

Multiple Choice

A man who is a dwarf due to achondroplasia and has normal vision marries a color-blind woman of normal height.The man's father was 6 feet tall,and both the woman's parents were of average height.Achondroplasia is autosomal dominant,and red-green color blindness is X-linked recessive.
They have a daughter who is a dwarf with normal color vision.What is the probability that she is heterozygous for both genes?

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