This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
Active principal of Lathyrus sativa is - 
Select and explain. 
A. Pyrrolizidine, B. Sanguinarine, C. BOAA, D. Jhunjhunia
C: BOAA
Answer: C: BOAA 
Explanation: The toxin present in lathyrus seeds is beta oxalyl amino alanine(BOAA)REF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-596.