Context: In a group of guppies, some individuals have a gray body and others have a golden body. In this group, the gene for the body color trait has two alleles. The allele B is for a gray body, and the allele b is for a golden body.
Nessie, a guppy from this group, has a golden body. Nessie has two alleles for a golden body.
Based on this information, what is Nessie's phenotype for the body color trait?
A. bb
B. a golden body
Identify the correct option from the choices provided and respond with the letter of the correct option.

B