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
Successful trial of labour can be expected in: March 2008 
Select and explain. 
A. Android pelvis, B. Naegele's pelvis, C. Flat pelvis, D. Generally contracted pelvis
C: Flat pelvis
Answer: C: Flat pelvis 
Explanation: Ans. C: Flat Pelvis In CPD, success of trial of labour depends on: Degree of pelvic contraction. Shape of pelvis-flat pelvis is better. Favourable veex presentation Intact membranes till full dilatation of cervix Effective uterine contractions