This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Anatomy
Assesment of progress of labor is best done by 
Select and explain. 
A. Station of head, B. Rupture of membranes, C. Contraction of uterus, D. Paogram
D: Paogram
Answer: D: Paogram 
Explanation: Paogram is the best method to assess progress of labor