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: Forensic Medicine
In Kesari dhal poisoning due to Lathyrus sativus, the active principle is: NIMHANS 07; MAHE 08; UPSC 14 
Select and explain. 
A. Pyrrozolidine, B. BOAA, C. Argemone oil, D. Pilocarpine
B: BOAA
Answer: B: BOAA 
Explanation: Ans. BOAA