Genetic drift is dependent upon which of the following? a. crossing-over b. random chance c. natural selection d. gene mutation

C. natural selection.

This is because in smaller populations the more that two separate groups of animals don’t interbreeding the father they become until speciation occurs where they cannot interbreed between the two groups.

The answer is natural selection ( letter C)

Trust me , I did it and it turned out correct !

b is the best answer for this question.