What is the most logical next event?

How to urinate after surgery
Empty your bladder completely before surgery.
Another thing that can help your bladder after surgery is making sure that you empty it before you go under anesthesia. You should urinate as close to going under as possible.

Select from:
(A). This will help ensure that you don't ingest any more liquids. This is a good idea when your surgery is described in more detail later.
(B). Sit on the edge of the bed, with your legs out in front of you. Bend forward at the waist until you can feel your penis pressing against the side of your lower belly.
(C). Alternatively, if you need to after surgery, you can if you so choose. You should not keep urinating there for longer than five minutes.
(D). Any urine left in your bladder during your surgery can make it harder to urinate afterwards. While this can reduce how much you urinate after surgery, you will still urinate some.
(D).