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
[{'content': 'Which of the following is a mechanical method of cervical induction? \nSelect and explain. \nA. PGE1 Oral Induction, B. PGE1 Vaginal induction, C. PGE2 vaginal Induction, D. Transcervical Foleys catheter', 'role': 'user'}, {'content': "Answer: D \nExplanation: Techniques of labor inductionPharmacological PGE2 PGE1 or Oral MechanicalTranscervical 36F Foley catheter Hygroscopic dilators (Ref: William's Obstetrics; 25th edition)", 'role': 'assistant'}]