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 pale orange cheeks (r) is recessive to the allele for bright orange cheeks (R).
This Punnett square shows a cross between two cockatiels.
What is the expected ratio of offspring with pale orange cheeks to offspring with bright orange cheeks? Choose the most likely ratio.
A. 2:2
B. 1:3
C. 0:4
D. 3:1
E. 4:0
Determine the correct option from the provided choices and reply with its corresponding letter.

B