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.
Henrietta, a budgerigar parakeet from this group, has green body feathers. Henrietta has one allele for green body feathers and one allele for blue body feathers.
Based on this information, what is Henrietta's phenotype for the body feather color trait?
A. green body feathers
B. Bb
Select the correct answer from the provided options and reply with the letter associated with it.

A