Megan has a widow's peak (dominant trait) and attached earlobes (recessive trait). Megan's dad has a straight hairline and unattached earlobes. If Megan marries a man that is heterozygous for both traits, what is the probability that they will have a child with a widow's peak and attached earlobes?
a. 1/16
b. 3/8
c. 1/4
d. 1/2
e. 3/4