Context: This passage describes the fleece type trait in sheep:

In a group of sheep, some individuals have a hairy fleece and others have a woolly fleece. In this group, the gene for the fleece type trait has two alleles. The allele F is for a hairy fleece, and the allele f is for a woolly fleece.
Petunia, a sheep from this group, has a hairy fleece. Petunia has two alleles for a hairy fleece.
Based on this information, what is Petunia's genotype for the fleece type gene?
A. FF
B. a hairy fleece
Determine the correct option from the provided choices and reply with its corresponding letter.
Answer: A