In a population of fish, the gene that determines the scale color phenotype has two alleles. The allele for grey scales (S) is dominant to the allele for gold scales (s). In the same population of fish, the gene for fin length also has two alleles. The allele for normal fin length (F) is dominant to the allele for long fin length (f). A fish that is homozygous dominant for scale color and homozygous recessive for fin length is crossed with a fish that is heterozygous for scale color and homozygous dominant for fin length. What are the possible genotypes of the offspring of this cross?
A. SSFf
B. ssFF
c. SsFF
D. SsFf