What do stabilizing selection and disruptive selection have in common?

A.
They both cause mutations.

B.
They both cause bottlenecks.

C.
They both are caused by gene flow.

D.
They both decrease genetic variation.

I think the answer is C

Explanation:

With stabilizing selection, the phenotype for a trait does not influence survival. With disruptive selection, the phenotype for a trait affects survival. ... Stabilizing selection reduces the amount of variation in a trait. Disruptive selection increases the amount of variation in a trait.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.