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: Medicine
[{'content': 'A 20-year-old female on OCPs resented with behaviour changes & abdominal pain most probable diagnosis is - \nSelect and explain. \nA. SLE, B. Acute intermittent porphyria, C. Pancreatitis, D. Aortic aneurysm', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]