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 for dark fur (F) is dominant over the allele for light fur (f).
Ringo is a rock pocket mouse from this group. Ringo has the heterozygous genotype Ff for the fur color gene.
Based on this information, what is Ringo's phenotype for the fur color trait?
A. light fur
B. dark fur
Select the correct answer from the given choices and respond with the letter of the chosen option.
Answer: B