Context: In a group of tomato plants, some individuals have red fruit and others have yellow fruit. In this group, the gene for the fruit color trait has two alleles. The allele F is for red fruit, and the allele f is for yellow fruit.
A certain tomato plant from this group has red fruit. This plant has two alleles for red fruit.
Based on this information, what is this tomato plant's genotype for the fruit color gene?
A. red fruit
B. FF
Determine the correct option from the provided choices and reply with its corresponding letter.

B