This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Which among the following is the commonest cause for breech presentation? 
Select and explain. 
A. Prematurity, B. Contracted pelvis, C. Oligohydromnios, D. Hydrocephalus
A: Prematurity
Answer: A: Prematurity 
Explanation: Prematurity is the commonest cause of breech presentation. The chance for breech presentation gradually decrease towards term. Breech presentation is the commonest malpresentation. In this, lie is longitudinal and podalic pole is present at the pelvic brim. Reference: Textbook of Obstetrics by D.C Dutta, 6e page 374-5.