The following genotypes of two independently assorting autosomal genes determine coat color in rats:
A_B_ (gray)
A_bb (yellow)
aaB_ (black)
aabb (cream)
A third gene pair on a separate autosome determines whether any color will be produced.
The CC and Cc genotypes allow color according to the expression of the A and B alleles. However, the cc genotype results in albino rats regardless of the A and B alleles present.

For the following cross, what fraction of the offspring would you expect to have each genotype?
aBbCc x AaBbcc