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
Which of the following is a mechanical method of cervical induction? 
Select and explain. 
A. PGE1 Oral Induction, B. PGE1 Vaginal induction, C. PGE2 vaginal Induction, D. Transcervical Foleys catheter
D: Transcervical Foleys catheter
Answer: D: Transcervical Foleys catheter 
Explanation: Techniques of labor inductionPharmacological PGE2 PGE1 or Oral MechanicalTranscervical 36F Foley catheter Hygroscopic dilators (Ref: William's Obstetrics; 25th edition)