What Did Durkheim's Nineteenth-Century Study of Suicide in France Demonstrate

What did Durkheim's nineteenth-century study of suicide in France demonstrate?

A) that suicide was mainly carried out by desperate people
B) that suicide was influenced mainly by people's level of psychological distress
C) that suicide was related to an individual's level of integration into society
D) that suicide was caused by a high level of confusion among people who belonged to several social networks at once