Context: In a group of guinea pigs, some individuals have brown eyes and others have red eyes. In this group, the gene for the eye color trait has two alleles. The allele for brown eyes (E) is dominant over the allele for red eyes (e).
Cupcake is a guinea pig from this group. Cupcake has the homozygous genotype EE for the eye color gene.
Based on this information, what is Cupcake's phenotype for the eye color trait?
A. brown eyes
B. red eyes
From the given choices, choose the correct answer and respond with the letter of that choice.

A