Which of the Following Would NOT Provide Evidence for a Genetic

Which of the following would NOT provide evidence for a genetic basis for aging?

A) Children of short-lived parents live shorter lives than children of long-lived parents.
B) Cells only divide for a set number of divisions.
C) Cell lines become nonfunctional before their maximum number of divisions is reached.
D) Smoking and excessive alcohol intake are linked to shorter life spans.
E) Certain genes that code for antioxidant enzymes to detoxify free radicals are present in animals that live longer. Since smoking and alcohol consumption are not genetic factors they would not provide a genetic basis for aging. They can, however, act to increase the affects of aging.