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.
Sammy, a dog from this group, has short fur. Sammy has two alleles for short fur.
Based on this information, what is Sammy's phenotype for the fur length trait?
A. FF
B. short fur
Select the correct answer from the given choices and respond with the letter of the chosen option.

B