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': 'Which one of the following is not a strategy under Roll Back Malaria - \nSelect and explain. \nA. Strengthening of health system, B. Use of insecticide treated bed nets, C. Anti-larval measures, D. Development of new antimalaria drugs', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Anti larvae measures", 'role': 'assistant'}]