Concept:The theory of insight was developed by Gestalt psychologists. They believed learning happens through sudden understanding of the whole situation, not by trial and error. Explanation:Gestalt psychologists argued that learning occurs by insight, not random steps or conditioning. A problem is solved when a person suddenly sees the relationship between all elements. Other theorists like Thorndike proposed trial and error, and Skinner proposed operant conditioning. The Gestalt view focuses on perceiving the entire configuration or Gestalt. Answer:B. Gestalt Psychologist