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': 'All of the following factors are responsible for resurgence of malaria, except: \nSelect and explain. \nA. Drug Resistance in Parasite, B. Insecticide Resistance in vectors, C. Antigenic mutations in parasite, D. Use of bed nets', 'role': 'user'}, {'content': "Answer: D \nExplanation: Mosquito nets are a personal protection measure from mosquito bites during sleep. They are not responsible for resurgence of malaria. Ref: Preventive and Social Medicine, by K.Park, 19th edition, Page 210, 219, 346, 628; Harrison's Principles of Internal Medicine, 16th edition, Page 1221.", 'role': 'assistant'}]