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: Social & Preventive Medicine
[{'content': 'Toxoid is prepared from - \nSelect and explain. \nA. Exotoxin, B. Endotoxin, C. Both, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Exotoxin Toxoids o Ceain organisms produce exotoxins e.g., diphtheria and tetanus bacilli. o The toxin produced by these organisms are detoxicated and used in the preparation of vaccines. o The antibodies produced neutralize the toxic moiety produced during infection, rather than act upon the organisms.", 'role': 'assistant'}]