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 carried out mainly 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 when people belonged to several social networks at once