This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'True regarding pseudomembranous colitis are all except - \nSelect and explain. \nA. It is caused by clostridium difficile, B. The organism is a normal commensal of gut, C. It is due to production of phospholipase A, D. It is treated by vancomycin', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., It is due to production of phospholipase A", 'role': 'assistant'}]