This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autacoids, Subject name: Pharmacology
Wof drug is used for cervical priming to facilitate labour 
Select and explain. 
A. Oxytocin, B. Progesterone, C. Prostaglandin E2, D. Clomiphene
C: Prostaglandin E2
Answer: C: Prostaglandin E2 
Explanation: Cervical priming (ripening) :- Low doses of PGE2 applied intravaginally or in the cervical canal, do not affect uterine motility, make the cervix soft and compliant. PGE2 (Dinoprostone) PROSTIN-E2 for induction/augmentation of labour. Ref:- kd tripathi;pg num:-189