Context: In a group of cows, some individuals have horns and others do not. In this group, the gene for the horns trait has two alleles. The allele for having horns (h) is recessive to the allele for not having horns (H).
This Punnett square shows a cross between two cows.
What is the expected ratio of offspring that have horns to offspring that do not have horns? Choose the most likely ratio.
A. 0:4
B. 2:2
C. 1:3
D. 4:0
E. 3:1
From the given choices, choose the correct answer and respond with the letter of that choice.

D