Critical Reasoning (CR) | Re: Studies indicate that love may be an essential component of human happ

IMO, answer is D,

A Most people who have been married for 40 years are of an advanced age.-----------weakens
B. The life expectancy of unmarried individuals is, on average, the same as that of married individuals.-------irrevalent
C. Some unmarried individuals live much longer than do married individuals.-------irrevalent
D. Some people who commit suicide indicate they did so because their love for another was unreturned.-------------sounds good, IMO correct
E. The individuals in the study who
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