Context: In a group of leopards, some individuals have a spotted coat and others have a black coat. In this group, the gene for the coat pattern trait has two alleles. The allele for a spotted coat (A) is dominant over the allele for a black coat (a).
Loki is a leopard from this group. Loki has the heterozygous genotype Aa for the coat pattern gene.
Based on this information, what is Loki's phenotype for the coat pattern trait?
A. a spotted coat
B. a black coat
Pick the correct answer from the listed options and provide the letter of the selected option.

A