Concept:Gestalt psychology emphasises that the whole is greater than the sum of its parts, and this school of thought was developed by three key psychologists.
Explanation:The term "Gestalt" is of German origin and means "pattern" or "configuration."
Max Wertheimer is regarded as the founder of Gestalt psychology, and he studied how visual diagrams helped students solve geometry problems.
Wolfgang Kohler conducted experiments with chimpanzees and demonstrated that they could solve problems through insight, meaning by thought alone.
Koffka contributed by systematically applying Gestalt theory to a wide range of psychological topics.
Each of these three psychologists worked in the same tradition and followed gestaltism in their research.
Therefore, no single option among Kohler, Koffka, or Wertheimer stands alone; the correct choice must include all three.
Answer:D. All the above.