Context: In a group of cucumber plants, some individuals have dull fruit and others have glossy fruit. In this group, the gene for the fruit sheen trait has two alleles. The allele F is for dull fruit, and the allele f is for glossy fruit.
A certain cucumber plant from this group has dull fruit. This plant has one allele for dull fruit and one allele for glossy fruit.
Based on this information, what is this cucumber plant's phenotype for the fruit sheen trait?
A. Ff
B. dull fruit
Identify the correct choice from the options below and respond with the letter of the correct option.

B