Concept:Thorndike’s primary laws of learning are readiness, effect, and exercise. Any option not among these is not a valid law.
Explanation:E. L. Thorndike proposed three main laws of learning based on his trial-and-error theory.
The law of readiness means a learner must be eager and prepared to learn.
The law of effect states that behaviours followed by satisfying consequences are strengthened.
The law of exercise emphasises practice and repetition to reinforce learning.
The option “law of stress” is not one of Thorndike’s laws.
Hence, it is the incorrect option.
Answer:B. Law of stress