This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
[{'content': 'False regarding filariasis is - \nSelect and explain. \nA. Morbidity increase with age in endemic areas, B. Humoral immunity plays dominant role, C. Usually unilateral, D. Man is the only host for filariasis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Definitive host - man Mosquito- intermediate host No animal reservoir host is known Lymph provides nutrition to adult worms (refer pgno: 166 baveja 3 rd edition)', 'role': 'assistant'}]