Durkheim Demonstrated That Suicide Rates Vary Across Groups

Durkheim demonstrated that suicide rates vary across groups. For example, he found that Protestants have higher rates of suicide than Catholics. Sociologists regard this as convincing evidence that

A) the tendency to suicide is genetically determined.
B) suicide is the result of psychological abnormalities.
C) social factors must be invoked to explain suicide rates.
D) individuals respond to economic difficulties differently.
E) Catholics are more religious than Protestants.