Which one of the following people has the most direct and most cost effective opportunity to avoid developing disease or injury?

a.
cathy is addicted to cigarettes. all of her friends smoke.
b.
juan is depressed. his father died suddenly last week.
c.
meryl has diabetes. her mother had it too.
d.
paul lives near a coal plant. many days his town has polluted air.

I would say A) Cathy is addicted to cigarettes. All of her friends smoke.

Explanation:

Cathy is really the only one doing something easily avoidable. Paul might be able to move and therefore avoid disease or injury, but moving is expensive. If Cathy quits smoking she will lower her risk of lung cancer, and she will no longer have to spend money on cigarettes.

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