Context: In a group of cows, some individuals have solid coloring and others have white spots. In this group, the gene for the coat pattern trait has two alleles. The allele for solid coloring (A) is dominant over the allele for white spots (a).
Clyde is a cow from this group. Clyde has the heterozygous genotype Aa for the coat pattern gene.
Based on this information, what is Clyde's phenotype for the coat pattern trait?
A. white spots
B. solid coloring
Select the correct answer from the provided options and reply with the letter associated with it.

B