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': 'Pictorial diagram of Frequency distribution is \nSelect and explain. \nA. Histogram, B. Pic chart, C. Spot map, D. Bar chart', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Histogram is pictorial diagram of frequency distribution.\nHistogram represent condineous quantitative data.', 'role': 'assistant'}]