Best investigation to visualize posterior urethra is-

Ans. is 'c' i.e., Cystoscopy Cystoscopyo Cystoscopy is endoscopy of the urinary bladder via the urethra. It is carried out with a cystoscope. o Cystoscopy may be recommended for any of the following conditions:# Urinary tract infections# Blood in the urine (hematuria)# Loss of bladder control (incontinence) or overactive bladder. Although, The American Urogynecologic Society does not recommend that cystoscopy, urodynamics, or diagnostic renal and bladder ultrasound are part of initial diagnosis for uncomplicated overactive bladder# Unusual cells found in urine sample# Need for a bladder catheter# Painful urination, chronic pelvic pain, or interstitial cystitis# Urinary blockage such as from prostate enlargement, stricture or narrowing of the urinary tract# Stone in the urinary tract# Unusual growth, polyp, tumor or cancer