Which Statements About Urge Incontinence and Stress Incontinence Are True

Which statements about urge incontinence and stress incontinence are true?

A) Urge incontinence involves a post-voiding residual volume less than 50 mL.
B) Stress incontinence occurs because of weak pelvic floor muscles.
C) Stress incontinence usually occurs in people with dementia.
D) Urge incontinence can be managed by increasing fluid intake.
E) Urge incontinence occurs because of abnormal bladder contractions.