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: Dental
[{'content': 'The graphic representation of frequency distribution with X and Y axis is: \nSelect and explain. \nA. Frequency polygon, B. Histogram, C. Pictograph, D. Pie diagram', 'role': 'user'}, {'content': 'Answer: B \nExplanation: It is a pictorial diagram of frequency distribution. There is no space between the cells on a histogram. The class intervals are given on the X axis and the frequencies along the Y axis.\xa0\nEg: Age-wise prevalence of dental caries.', 'role': 'assistant'}]