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.
How many of the couple's daughters might be expected to be color-blind dwarfs?

A) all
B) none
C) half
D) one out of four