In humans, the allele for brown eyes is dominant to the allele for blue eyes. In one family, two children and both parents have brown eyes. A
biology student incorrectly concludes that the next child born into this family will also have brown eyes.
Which error led to the student's incorrect conclusion?
A. It is not likely for both parents to have the dominant alleles for eye color.
B. There is little probability that the parents will have more brown-eyed children.
C. There is not enough data to know that the parents are homozygous dominant.
D. It is not possible for the parents to have heterozygous genotypes for eye color.