The correct answer would be option C, Unconditioned Stimulus.
If you imagine biting into a big, juicy, sour lemon, you are likely to salivate. The lemon is an example of an Unconditioned Stimulus.
Explanation:
Unconditioned Stimulus is a stimulus which creates a natural, unconditioned, automatic response. The most common and simple example of the Unconditioned stimulus is when you feel the smell of your favorite food and you at once feel hungry, then the smell of the food is the unconditioned stimulus.
Similarly, if you imagine yourself biting a big, juicy, sour lemon, then you at once begin to salivate, then this imagination of lemon is the unconditioned stimulus which creates a response which is Salivation.
Learn more about Unconditioned Stimulus at:
brainly.com/question/10438983
brainly.com/question/9491685
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