This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammatory Bowel Disease, Subject name: Medicine
[{'content': 'DOC of acute exacerbation of ulcerative colitis? \nSelect and explain. \nA. Sulfasalzine, B. Steroids, C. Infliximab, D. Cyclosporine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Initial management of ulcerative colitisis is with steroid enema, while many patients will require a sho course of intravenous coicosteroids like methyl-prednisolone. In patients with steroid-refractory colitis, the choice is between rescue medical therapy with cyclosporine or infliximab, or surgery.', 'role': 'assistant'}]