Jamel got very sick after eating some mushrooms on a pizza at his friend's house. He didn't know that
he had a stomach virus at the time, blamed his illness on the mushrooms, and refused to eat them again. Which of the following is the unconditioned stimulus for his taste aversion to mushrooms?
A) Pizza
B) Stomach Virus
C) Mushrooms
D) Headache
E) Aversion to Mushrooms
Answer: B