Context: In a group of fruit flies, some individuals have a gray body and others have a black body. In this group, the gene for the body color trait has two alleles. The allele for a gray body (B) is dominant over the allele for a black body (b).
This Punnett square shows a cross between two fruit flies.
What is the expected ratio of offspring with a black body to offspring with a gray body? Choose the most likely ratio.
A. 1:3
B. 3:1
C. 4:0
D. 0:4
E. 2:2
Pick the correct answer from the listed options and provide the letter of the selected option.

D