Why Might You Expect That Organisms That Produce Amniotic Eggs

Why might you expect that organisms that produce amniotic eggs will also have internal fertilization?

A) Because internal fertilization is only found in more advanced organisms that have amniotic eggs.
B) Because internal fertilization requires more refined behaviors to attract mates, those behaviors only evolved in organisms with internal fertilization.
C) Because some amniotic eggs have a hardened shell, they must be fertilized before the shell is deposited around the egg.
D) Because in mammals the amniotic egg eventually evolved into the placenta, there must be internal fertilization so the embryo can develop in utero.