Dr. ames is a scientist whose focus of research is on the way groups influence the decisions that individuals make. in the context of areas of specialization in psychology, dr. ames is most likely a psychologist. health developmental social personality

I believe the answer is: Social psychologist

Social psychologist study how the action and behaviour that displayed by an individual would affect the condition of other members of the social group. They operates on the assumption that even the presence of a certain individual could heavily affect the behaviour of the rest of the group.

this would be b. giving reasons for a belief