In Cocker Spaniels, Black Coat Color (B) Is Dominant Over

Multiple Choice

In cocker spaniels, black coat color (B) is dominant over red (b) , and solid color (S) is dominant over spotted (s) . If two black, solid dogs were crossed several times and the total offspring were eighteen black, solid and five black, spotted puppies, the genotypes of the parents would most likely be

A) Bb Ss x Bb Ss .
B) Bb Ss x Bb SS .
C) BB Ss x Bb ss .
D) BB Ss x Bb Ss .
E) Bb ss x Bb SS .