question: Q:A 48-year-old woman presents to an urgent care clinic with the complaints of bloody diarrhea, mid-abdominal discomfort, and cramping for 3 days. She also has nausea, vomiting, and fever. She reports that she had eaten raw oysters at a local seafood restaurant almost 3 days ago, but she denies any other potentially infectious exposures. Her temperature is 37.5°C (99.6°F), respiratory rate is 15/min, pulse is 67/min, and blood pressure is 102/68 mm Hg. Physical examination is non-contributory. What is the most likely diagnosis?? 
  {'A': 'Rotavirus infection', 'B': 'C. difficile colitis', 'C': 'Bacillus cereus infection', 'D': 'Norovirus infection', 'E': 'Vibrio parahaemolyticus infection'},