Context: This passage describes the albinism trait in rats:

In a group of rats, some individuals have albinism and others do not. In this group, the gene for the albinism trait has two alleles. The allele for not having albinism (A) is dominant over the allele for having albinism (a).
Candy is a rat from this group. Candy has the heterozygous genotype Aa for the albinism gene.
Based on this information, what is Candy's phenotype for the albinism trait?
A. not having albinism
B. having albinism
Select the correct answer from the provided options and reply with the letter associated with it.

A