This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
[{'content': 'The best graphic representation of frequency distribution of data gathered of a continuous variable is- \nSelect and explain. \nA. Simple bar graph, B. Multiple bar, C. Line diagram, D. Histogram', 'role': 'user'}, {'content': 'Answer: A \nExplanation: .', 'role': 'assistant'}]