This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Contracted Pelvis, Subject name: Gynaecology & Obstetrics
Deep transverse arrest is seen in- 
Select and explain. 
A. Androidpelvis, B. Gynaecoid, C. Anthropoid, D. Platypoid
A: Androidpelvis
Answer: A: Androidpelvis 
Explanation: Ans. is 'a' i.e., Android pelvis Gynecoid pelvis : This is suitable for vaginal delivery.Android pelvis : Associated with deep transverse arrest.Anthropoid pelvis : Associated with persistent OP position .Plattypeloid pelvis : Associated with obstructed labour.