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': 'Most important strategy for control of malaria in endemic area \nSelect and explain. \nA. Early treatment of case, B. Chemoprophylexis, C. Vector control, D. Eliminaon of plasmodium', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]