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: Social & Preventive Medicine
[{'content': 'The ideal method of representation of frequency distribution with continuous variable: \nSelect and explain. \nA. Line diagram, B. Histogram, C. Simple bar diagram, D. Component bar diagram', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Histogram', 'role': 'assistant'}]