Context: In a group of rabbits, some individuals have black fur and others have brown fur. In this group, the gene for the fur color trait has two alleles. The allele F is for black fur, and the allele f is for brown fur.
Peanut, a rabbit from this group, has black fur. Peanut has two alleles for black fur.
Based on this information, what is Peanut's phenotype for the fur color trait?
A. FF
B. black fur
Identify the correct choice from the options below and respond with the letter of the correct option.

B