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: Pharmacology
[{'content': "INFLIXIMAB (systemic) is used in \nSelect and explain. \nA. Crohn's disease (treatment), B. To reduce the number of draining enterocutaneous fistula(s) in patients with fistuLizing crohn's disease, C. Rheumatoid arthritis (treatment), D. All of the above", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]