Context: In a group of guppies, some individuals have a spotted tail and others have an unspotted tail. In this group, the gene for the tail spots trait has two alleles. The allele for a spotted tail (I) is dominant over the allele for an unspotted tail (i).
This Punnett square shows a cross between two guppies.
What is the expected ratio of offspring with a spotted tail to offspring with an unspotted tail? Choose the most likely ratio.
A. 3:1
B. 1:3
C. 0:4
D. 2:2
E. 4:0
From the given choices, select the correct answer and reply with the letter of the chosen option.

E