Use the Following to Answer Questions

Use the following to answer questions :
In a species of tortoise,foot size (big or small) is controlled by one gene,while shell shape (round or lumpy) is controlled by another gene.Suppose that a big-footed lumpy-shelled tortoise mates with a small-footed round-shelled tortoise.Eight offspring result: four big-footed round-shelled tortoises and four small-footed round-shelled tortoises.(Assume that the parents are not necessarily homozygous for each allele. )
-If big feet (B) in tortoises is dominant to small feet (b) ,what is the genotype of the big-footed parent with respect to the foot gene?

A) bb
B) BB
C) Bb
D) Either bb or BB
E) Either bb and Bb