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: Unknown
[{'content': 'Chandler’s Index is used for: \nSelect and explain. \nA. Filariasis, B. Ascariasis, C. Guinea worm, D. Ancylostoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Chandler Index\nIt is the average number of hookworm eggs per gram of faeces for the entire community.', 'role': 'assistant'}]