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 dihybrids (Bb Ss) were crossed, what fraction of the black, solid offspring would be homozygous?

A) 4/16
B) 9/16
C) 1/9
D) 3/16
E) 3/4