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
Graphical representation of frequency distribution curve is 
Select and explain. 
A. Pie cha, B. Bar diagram, C. Histogram, D. Pictogram
C: Histogram
Answer: C: Histogram 
Explanation: Ref:Park's Textbook of Preventive and Social Medicine 25th Ed