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: Gynaecology & Obstetrics
[{'content': 'Face to pubis delivery occurs in --------- type of pelvis : \nSelect and explain. \nA. Android, B. Anthrapoid, C. Gynecoid, D. Platypelloid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In orable circumstances, i.e. with an average size baby, good uterine contractions and an adequate pelvis such as an anthropoid or spacious gynecoid--spontaneous delivery may occur as "face to pubis". Reference : D C Dutta Textbook of Obstetrics,7th edition page 368', 'role': 'assistant'}]