Context: In a group of budgerigar parakeets, some individuals have green body feathers and others have blue body feathers. In this group, the gene for the body feather color trait has two alleles. The allele B is for green body feathers, and the allele b is for blue body feathers.
Peck, a budgerigar parakeet from this group, has blue body feathers. Peck has two alleles for blue body feathers.
Based on this information, what is Peck's genotype for the body feather color gene?
A. bb
B. blue body feathers
Answer with the option's letter from the given choices directly.

A