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': 'Burch technique of treating urinary incontinence is \nSelect and explain. \nA. Pubovaginal sling, B. Retropubic urethropexy, C. Midurethral slings, D. Needle suspension', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Burch colposuspension is procedure of retropubic urethropexy, wherein pubocervical fascia is attached to cooper ligament to lift anterior vaginal wall and periurethral fibromuscular tissue.', 'role': 'assistant'}]