In Performing a Dihybrid Cross,you Expect to See a 9:3:3:1

Multiple Choice

In performing a dihybrid cross,you expect to see a 9:3:3:1 ratio.What is a good explanation if you do not see a 9:3:3:1 ratio in a dihybrid cross?

A) The two genes are not linked.
B) The two genes are linked.
C) One of the genes is dominant over the other.
D) The two genes assort independently.
E) This proves that Mendel's laws are incorrect.