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:

One historical reason that people in the indian subcontinent have been reluctant to use livestock for food has been that a. their digestive systems are unable to handle meat and proteins b. they refused to eat meat in order to show resistance to british imperialism c. they are able to use cattle as a labor mainstay of their agriculture d. they can use the meat from cattle as fertilizer to make crops grow better