Answer:
The answer is C.
Explanation:
A dihybrid cross is an experiment showing the inheritance of two different traits.
This can be explained by Mendel's law of independent assortment in which he states that: "members of one gene pair segregate independently from other gene pairs during gametes formation".
Hence the four different gametes formed after the cross.
When you arrange the gametes on the top and left side of a Punnett square it'll yield 16 likely results, which are the phenotypic ratios of the cross.
This is demonstrated in the photo files attached to this answer.