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: Gynaecology & Obstetrics
A midwife at a PI-IC is monitoring pregnancy and maintaining the paograph of pregnancy progression. At how much cervical dilation should the paograph plotting be staed? 
Select and explain. 
A. 4 cm, B. 5 cm, C. 6 cm, D. 8 cm
A: 4 cm
Answer: A: 4 cm 
Explanation: Answer- A. 4 cmPaograph recording is usually staed after a cervical dilation of 3 cm (not the 4 cm), i.e. the active stage of labor As 3 cm is not given in the option, we have to choose 4 cm.