Answer:
a. Symbolic interactionism
Explanation:
Symbolic interactionism: In social psychology, the term symbolic interactionism is considered to be as one of the major perspectives. The symbolic interactionism states the process of how an individual explains his or her social reality and understand himself or herself by interacting with the other person.
Mead believed that an individual's self can be developed through his or her social interactions.
In the question above, symbolic interactionism would be most interested in examining the lobbying movement.