The is a response that is elicited by an unconditioned stimulus without prior learning. a) unconditioned response b) conditioned stimulus c) unconditioned stimuli d) conditioned response next

unconditioned response

Explanation:

Proposed by Pavlov, unconditioned response is an unlearned response which happens naturally in response to an unconditioned stimulus. For example feeling hungry in response to the smell of food is an unconditioned response or reaction.