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
[{'content': 'In deep transverse arrest with adequate pelvis, best mode of delivery will be : \nSelect and explain. \nA. Ventouse, B. Keilland forceps, C. Manual rotation followed by forceps, D. Cesarean section', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ventouse', 'role': 'assistant'}]