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
lncontinence in elderly female b most commonly due lo : 
Select and explain. 
A. Detrusor instability, B. True stress incontinence, C. Vesicovaginal fistule, D. Outlet obstruction
A: Detrusor instability
Answer: A: Detrusor instability 
Explanation: Detrusor instability