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: Microbiology
[{'content': 'Man is the intermediate host of: \nSelect and explain. \nA. Malaria, B. Filaria, C. Dengue, D. Plague', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Sexual cycle takes place in the mosquitoes, while asexual Cycle takes place in human beings. Therefore, mosquito acts as the definitive host, while man-the intermediate host. Asexual cycle is responsible for producing clinical malaria in man, while sexual cycle is responsible for reproduction. Human cycle acts as a reservoir, while mosquito cycle a transmitter of the disease.', 'role': 'assistant'}]