Natural Selection.
It favors the better adapted organisms.
Either amino acids or genotypes.
I'd say A: tidal waves. B, C, and D don't really seem to fit for me.
The answer would be D. Huntington's disease presents symptoms in humans after many have already reproduced; therefore, they are unaware that they passed on Huntington's disease.
D.Mutation causing uncontrolled cell division
Explanation:
have a good day :)
