This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological diagnosis and operative surgery, Subject name: Gynaecology & Obstetrics
[{'content': 'The advantages of cryosurgery over electrocauterization are all except \nSelect and explain. \nA. Less discomfo to the patient, B. Postoperative bleeding is much less, C. Postoperative vaginal discharge is much less, D. Cervical stenosis is extremely rare', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Advantages of cryosurgery Anaesthesia not required Precise destruction of tissue No secondary hemorrhage Cervical stenosis is rare Disadvantages Major disadvantage is the cervical discharge after the procedure', 'role': 'assistant'}]