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': 'Highest incidence of anemia in the tropics is due to- \nSelect and explain. \nA. Hookworm, B. Thread Worm, C. Ascaris, D. Guinea worm', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]