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

B