He kept his head at that critical moment; otherwise the accident______.

A．Both the social group theory and the scientific research methods developed by Durkheim have contributed much to the field of sociology.
B．Durkheim believed that individual members of a group strongly influence the group’ s ways of thinking, feeling, and behaving.
C．The research study conducted by Durkheim provided strong evidence that suicide rates vary among members of different social groups.
D．Through his research, Durkheim made great strides in distinguishing sociology from psychology.

A．outline the steps Durkheim followed in conducting his research study
B．describe the ways in which Durkheim’ s work has influenced sociology
C．persuade the reader that social groups control most of the behaviors of their individual members
D．explain the differences between sociology and psychology