The nurse knows that which indwelling catheter procedure places the patient at greatest risk for acquiring a urinary tract infection?()

A．Emptying the drainage bag every 8 hours or when half full.
B．Kinking the catheter tubing to obtain a urine specimen.
C．Placing the drainage bag on the side rail of the patient’s bed.
D．Failing to secure the catheter tubing to the patient’s thigh.