Carson used to enjoy lime sherbet, so when he was in Mexico, he tried frozen lime margaritas. After his fourth margarita, Carson became extremely ill. Now he finds that even the sight of lime sherbet in a bowl can make him feel queasy. In this example, the unconditioned stimulus is:_______.a. the lime margaritas that Carson consumed.b. the illness that followed the fourth margarita.c. the sight of lime sherbet.d. the queasiness that Carson feels when he sees lime sherbet.

Carson used to enjoy lime sherbet, so when he was in Mexico, he tried frozen lime margaritas. After his fourth margarita, Carson became extremely ill. Now he finds that even the sight of lime sherbet in a bowl can make him feel queasy. In this example, the unconditioned stimulus is the lime margaritas that Carson consumed. In classical conditioning, an unconditioned stimulus is a stimulus that causes an automatic response, it is not learned. Example of an unconditioned stimulus is the smell of food and usually the unconditioned response is the feeling of hunger. In the scenario in the question, the unconditioned stimulus is the lime margaritas and the unconditioned response is the illness that the fourth margarita.