Context: In a group of cockatiels, some individuals have bright orange cheeks and others have pale orange cheeks. In this group, the gene for the cheek color trait has two alleles. The allele for bright orange cheeks (R) is dominant over the allele for pale orange cheeks (r).
Beau is a cockatiel from this group. Beau has the heterozygous genotype Rr for the cheek color gene.
Based on this information, what is Beau's phenotype for the cheek color trait?
A. bright orange cheeks
B. pale orange cheeks
Determine the correct option from the provided choices and reply with its corresponding letter.

A