This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
[{'content': 'Cause of Clostridium difficile associated diarrhea is \nSelect and explain. \nA. Trauma, B. Dairy products, C. Fried rice, D. Antibiotic use', 'role': 'user'}, {'content': "Answer: D \nExplanation: Clostridium difficile causes acute colitis with bloody diarrhea and pseudomembranous colitis. A common cause of nosocomial diarrhea. The disease follows the use of broad-spectrum antibiotics to which it is resistant. Exotoxin A and B involved in the pathogenesis. An oppounistic organism that causes disease only when the normal mechanism is altered. Reference: Textbook of Microbiology; Anathanarayan and paniker's; 10th edition; Page no: 270", 'role': 'assistant'}]