This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health care of community & international health, Subject name: Social & Preventive Medicine
[{'content': 'Chandler Index is 225. What is the interpretation? \nSelect and explain. \nA. Potential danger to community, B. No danger, C. Minor public health problem, D. Major public health problem', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Chandler Index This is the average number of hookworm eggs per gram of faeces for the entire community (Average number of eggs per gram of stools). (Ref. Park PSM 18thed.195)', 'role': 'assistant'}]