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

B