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
Pictorial diagram of Frequency distribution is 
Select and explain. 
A. Histogram, B. Pic chart, C. Spot map, D. Bar chart
A: Histogram
Answer: A: Histogram 
Explanation: Histogram is pictorial diagram of frequency distribution.
Histogram represent condineous quantitative data.