in classical conditioning is the tendency of a new stimulus that is similar to the original conditioned stimulus to elicit a response that is similar to the conditioned response.

Generalization

Explanation:

In classical conditioning, generalization refers to the ability of an organism to respond to a stimulus the same way it responds to a stimulus that is similar. For example, generalization is seen in Pavlov’s experiment with dogs, after the pairing of the meat powder with the tone of a bell. The dog which naturally salivates as an unconditioned response to the meat powder (unconditioned stimulus), also later produce similar response (conditioned response) when presented only with the sound of a bell (conditioned response). This is generalization in classical conditioning, as the dog responds in a similar way to meat powder and also to the tone of a bell.

correct answer is a. and d.