Professor Young Is Interested in the Different Ways That Men

Professor Young is interested in the different ways that men and women communicate about their emotional experiences.Observational research may not be a good method to use because

A) researchers' own emotions can colour their interpretations of conversations.
B) it is difficult to achieve interjudge reliability when coding conversations.
C) it is impossible to use random assignment.
D) intimate communications about emotions are often conducted in private.
E) people hesitate to talk about their emotions in front of researchers.