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': 'Habitat of hookworm is - \nSelect and explain. \nA. Jejunum, B. ileum, C. Colon, D. Duodenum', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The adult worms live in the small intestine of infected persons mostly in the jejunum,less often in the duodenum, and infrequently in the ileum Ref : panikers textbook of Medical parasitology 8th edition page 187', 'role': 'assistant'}]