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).
This Punnett square shows a cross between two cockatiels.
What is the probability that a cockatiel produced by this cross will have bright orange cheeks?
A. 2/4
B. 4/4
C. 0/4
D. 1/4
E. 3/4
Identify the correct choice from the options below and respond with the letter of the correct option.
Answer: B