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': "A young girl shows severe dysplasia on cervical cytology. The treatment of choice is : \nSelect and explain. \nA. Conisation, B. Schiller's test, C. Colposcopy, D. Repeat pap smear", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Conisation', 'role': 'assistant'}]