Context: In a group of Syrian hamsters, some individuals have straight fur and others have wavy fur. In this group, the gene for the fur texture trait has two alleles. The allele F is for straight fur, and the allele f is for wavy fur.
Truffle, a Syrian hamster from this group, has straight fur. Truffle has one allele for straight fur and one allele for wavy fur.
Based on this information, what is Truffle's phenotype for the fur texture trait?
A. straight fur
B. Ff
From the given choices, pick the correct answer and respond by indicating the letter of the correct option.

A