Fact: Married people live longer.
Argument: It is not marriages, but less unhealthy habits, that make people live longer.
Ask for strengthen.
A. Marriage tends to cause people to engage less regularly in sports that involve risk of bodily harm.
Provide an alternative reason why married people live longer. Do not directly support the argument, but explains the fact.
B. A married person who has an unhealthy habit is more likely to give up that habit than a person with the same habit who is unmarried.
Prove that married people have less unhealthy habit. But does not directly support that less unhealthy habits make people live longer.
C. A person who smokes is much more likely than a nonsmoker to marry a person who smokes at the time of marriage, and the same is true for people who drink alcohol immoderately.
Similar as B.
D. Among people who marry as young adults, most of those who give up an unhealthy habit after marriage do not resume the habit later in life.
Similar as B.
E. Among people who as young adults neither drink alcohol immoderately nor smoke, those who never marry live as long as those who marry.
Directly prove that it is not marriage, but the healthy habits, that make people live longer.
Yes it is a clear E.
Keep on asking, and it will be given you;
keep on seeking, and you will find;
keep on knocking, and it will be opened to you.