This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fetal Skull and Maternal Pelvis, Subject name: Gynaecology & Obstetrics
[{'content': 'Face to pubis delivery is most common seen in which kind of pelvis - \nSelect and explain. \nA. Gynecoid, B. Android, C. Anthropoid, D. Platypelloid', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Anthropoid o Gynaecoid: No difficultyo Anthropoid: Most common incidence of face to pubiso Android: Increased risk of perineal tearso Platypelloid: No difficultyo Most common type of pelvis: Gynecoido Least common type of pelvis: Platypelloido Most common cause of Occipitoposterior position : Anthropoid pelviso Most common cause of persistent occipitoposterior position : Android pelviso Only pelvis where transverse diameter > AP diameter is platypelloid pelvis.", 'role': 'assistant'}]