Context: In a group of horses, some individuals have a black coat and others have a reddish-brown coat. In this group, the gene for the coat color trait has two alleles. The allele for a reddish-brown coat (l) is recessive to the allele for a black coat (L).
Clyde is a horse from this group. Clyde has the heterozygous genotype Ll for the coat color gene.
Based on this information, what is Clyde's phenotype for the coat color trait?
A. a black coat
B. a reddish-brown coat
Identify the correct option from the choices provided and respond with the letter of the correct option.

A