Concept:Thorndike’s theory is called the Trial and Error Theory of learning. It explains that learning occurs through repeated attempts and gradual elimination of errors.Explanation:Thorndike placed a hungry cat in a puzzle box with a fish outside. The cat could open the door by pulling a string. At first, the cat made random movements like squeezing and jumping. After many trials, the cat learned to pull the string directly. This showed that learning happens by trying different actions and keeping the ones that work. Mistakes naturally decrease with practice. Thus, his theory is known as trial and error learning.Answer:Option A: trial and error learning