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
[{'content': 'Responsible for epidemic dropsy is - \nSelect and explain. \nA. Sanguinarine, B. Ergot alkaloids, C. Pyrazolidine alkaloids, D. Aflatoxin', 'role': 'user'}, {'content': "Answer: A \nExplanation: The conatamination of mustard oil with argemone oil which contains a toxic alkaloid,sanguinarine causes epidemic dropsyREF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-608.", 'role': 'assistant'}]