This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Gynaecology & Obstetrics
Interpret the paogram 
Select and explain. 
A. Inadequate uterine contraction, B. cephalopelvic dispropoion, C. Prolonged latent phase, D. normal paogram
B: cephalopelvic dispropoion
Answer: B: cephalopelvic dispropoion 
Explanation: ref : dutta 9th ed