Answer:
B. Gerald Caplan.
Explanation:
Gerald Caplan is the founder of modern day practice of mental health consultation. His consultation theories were based on Freud's works.
Gerald Caplan introduced the concept of modern practice of mental health consultation in his book titled 'The Theory and Practice of Mental Health Consultation', written in 1970. The idea of mental health consultation evolved in Caplan's mind when he worked with emotionally devastated immigrants children in Israel.
His theories of mental health consultation is based on Freud's work.
So, the correct answer is (B) Gerald Caplan.