A Man Has Extra Digits (Six Fingers on Each Hand

Multiple Choice

A man has extra digits (six fingers on each hand and six toes on each foot) . His wife and their daughter have a normal number of digits. Having extra digits is a dominant trait. The couple's second child has extra digits. What is the probability that their next (third) child will have extra digits?

A) 1/2
B) 1/16
C) 1/8
D) 3/4
E) 9/16