Explanation

 Trial-and-error learning involves repeatedly trying different actions or strategies until one leads to a successful outcome.

Classical conditioning, on the other hand, is a type of learning that involves associating two stimuli, such as a neutral stimulus (like a bell) with a naturally occurring stimulus (like food).

The association leads the animal to respond to the neutral stimulus as if it were the natural stimulus.

This process doesn't require trial and error; the response is learned through repeated pairings of the stimuli.