Context: In a group of cows, some individuals have horns and others do not. In this group, the gene for the horns trait has two alleles. The allele H is for not having horns, and the allele h is for having horns.
Toriel, a cow from this group, does not have horns. Toriel has one allele for not having horns and one allele for having horns.
Based on this information, what is Toriel's genotype for the horns gene?
A. Hh
B. not having horns
Determine the correct option from the provided choices and reply with its corresponding letter.

A