Answer:
Unconditioned response
Step-by-step explanation:
it is referred to that response ion classical conditioning which arises due to some unlearned stimulus. In a simple way, it is referred to that response that produced due to a stimulus that is unnatural.
example of unconditioned response- the smell of freshly prepared food, while the conditioned response is when, a dog listened to whistle for food and his excitement after hearing that particular sound is considered to be conditioned response.