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: Anatomy
[{'content': 'Which type of the pelvis is associated with increased incidence of face to pubis delivery? \nSelect and explain. \nA. Gynecoid pelvis, B. Anthropoid pelvis, C. Android pelvis, D. Platypelloid pelvis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Anthropoid pelvis : AP diameter is more than that of transverse diameter Direct occipitoposterior position is more common Non-rotation is common More incidence of Face to pubis delivery Ref: Datta Obs 9e pg 325.', 'role': 'assistant'}]