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
Ogive is- 
Select and explain. 
A. Bar cha, B. Histogram, C. Cumulative frequency curve, D. Frequency polygon
C: Cumulative frequency curve
Answer: C: Cumulative frequency curve 
Explanation: .