Vignette #1 the Waltons Had Dinner at Their Favorite Local

Vignette #1 The Waltons had dinner at their favorite local restaurant. Marty had a hamburger, Jill had grilled chicken, and Lori had clams on spaghetti. They had wine with dinner, ordered dessert, and thoroughly enjoyed the evening. Late the next day, Marty starting having stomach pains. Soon he also had diarrhea and began vomiting. Jill decided he should go to the emergency room at the hospital and so off they went. The medical intern saw Marty in extreme pain and immediately began asking him questions. Let's see if you can answer the following questions as well as the intern. The hamburger was most likely the culprit in Marty's illness. What may have occurred to lead to his condition?

A) The cows may have been given feed containing mammalian protein tissues.
B) The meat may have been cooked to 160 degrees Farenheit.
C) The meat may have been cooked to 135 degrees Farenheit.
D) The meat may have been defrosted in the refrigerator.