This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Labour - normal, abnormal, malposition, malpresentation and their management, Subject name: Gynaecology & Obstetrics
[{'content': 'External Cephalic Version (ECV) is contraindicated in all of the following , EXCEPT? \nSelect and explain. \nA. Twins, B. Flexed breech, C. Premature Rupture of membranes, D. Previous abruption', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ECV -Absolute contraindications : Placenta pre Multifetal gestation Severe contracted pelvis - Relative contraindications Early labor oligohydramnios or rupture of membranes structural uterine abnormalities fetal growth restriction prior abruption', 'role': 'assistant'}]