To Reduce Patient Discomfort During Closed Catheter Irrigation,what Should the Nurse

To reduce patient discomfort during closed catheter irrigation,what should the nurse do?

A) Use room temperature irrigation solution.
B) Administer the solution as quickly as possible.
C) Allow the solution to sit in the bladder for at least 1 hour.
D) Raise the bag of irrigation solution at least 30 centimetres above the bladder.