Context: In a group of rock pocket mice, some individuals have dark fur and others have light fur. In this group, the gene for the fur color trait has two alleles. The allele F is for dark fur, and the allele f is for light fur.
Nutmeg, a rock pocket mouse from this group, has light fur. Nutmeg has two alleles for light fur.
Based on this information, what is Nutmeg's phenotype for the fur color trait?
A. ff
B. light fur
Select the correct answer from the given choices and respond with the letter of the chosen option.

B