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
Face to pubis delivery occurs in --------- type of pelvis : 
Select and explain. 
A. Android, B. Anthrapoid, C. Gynecoid, D. Platypelloid
B: Anthrapoid
Answer: B: Anthrapoid 
Explanation: 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