This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2017, Subject name: Medicine
[{'content': "Initial treatment for management of mild to moderate Crohn's disease is: \nSelect and explain. \nA. Mesalamine, B. Infliximab, C. Budesonide, D. Sulfasalazine", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Sulfasalazine is DOC for UC ulcerative colitis) UC exacerbation - Budesonide enema. (20 bloody stool / day)', 'role': 'assistant'}]