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
A 20-year-old female on OCPs resented with behaviour changes & abdominal pain most probable diagnosis is - 
Select and explain. 
A. SLE, B. Acute intermittent porphyria, C. Pancreatitis, D. Aortic aneurysm
B: Acute intermittent porphyria
Answer: B: Acute intermittent porphyria 
Explanation: None