During a Visit to a Geneticist's Practice a Patient with Blue

During a visit to a geneticist's practice a patient with blue eyes asks the nurse to explain eye color, adding that his mother had blue eyes and his father had brown eyes. What should the nurse include in this explanation?

A) "You have two identical alleles that are responsible for your eye color."
B) "The alleles that are responsible for your eye color are heterozygous."
C) "Your eye color is the result of an expressed gene."
D) "Alleles are forms of a gene."
E) "Your eye color is just one part of your phenotype."