Context: In a group of dogs, some individuals have short fur and others have long fur. In this group, the gene for the fur length trait has two alleles. The allele F is for short fur, and the allele f is for long fur.
Arrow, a dog from this group, has short fur. Arrow has one allele for short fur and one allele for long fur.
Based on this information, what is Arrow's genotype for the fur length gene?
A. short fur
B. Ff
From the given choices, select the correct answer and reply with the letter of the chosen option.

B