37. 50歲年齡層的婦女最常見的尿失禁( urinary incontinence )為下列何項？(A) 急迫性尿失禁( urgency urinary incontinence )(B) 混合型尿失禁(mixed urinary incontinence )(C) 應力性尿失禁(stress urinary incontinence )(D) 尿道外尿失禁-膀胱陰道瘻管( extraurethral urinary incontinence - vesicovaginal fistula )