This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abnormal labor, Subject name: Gynaecology & Obstetrics
[{'content': 'Vaginal bih after caesarean section (VBAC) is contraindicated in: \nSelect and explain. \nA. Previous classical section, B. Suspected CPD, C. NO vaginal bih previously, D. Previous uterine rupture', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most common indications (85%) Previous Caesarean (most common) Dystocia Fetal distress Breech presentation (refer pgno:459 sheila textbook of obstetrics 2 nd edition)', 'role': 'assistant'}]