Among people who live to the age of 100 or more, a large proportion have led “unhealthy” lives: smoking, consuming alcohol, eating fatty foods, and getting little exercise. Since such behavior often leads to shortened life spans, it is likely that exceptionally long-lived people are genetically disposed to having long lives.
Conclusion:
Gen --> long-lived Which one of the following, if true, most
strengthens the argument?
(A) There is some evidence that consuming a moderate amount of
alcohol can counteract the effects of eating fatty foods.Not related to gen
(B) Some of the exceptionally long-lived people who do not smoke or drink
do eat fatty foods and get little exercise.Not related to gen
(C) Some of the exceptionally long-lived people who exercise regularly and
avoid fatty foods do smoke or consume alcoholNot related to gen
(D) Some people who
do not live to the age of 100 also lead unhealthy lives.
Out of scope. We are talking about people who >100 years old.
(E) Nearly all people who live to 100 or more have
siblings who are also long-lived.
This is the correct anwer