Concept:Kohler’s insight learning theory shows that learning occurs through sudden mental reorganization of the problem’s parts, not by trial and error.Explanation:Kohler observed chimpanzees solving problems using insight. In his famous experiment, a chimpanzee named Sultan suddenly realised he could use a box to reach a banana hung high. This was not random activity or conditioning—it was a cognitive operation. Kohler argued that learning happens when we perceive the whole situation and see how its different parts connect. The learner reorganises their mental view of the problem. This proves that learning is a perception of different parts of the situation, not a result of trial and error or simple rewards.Answer:D. The perception of different parts of the situation