I realize this may have just been my crowded NYC hospital, but they may have also seen the multi-page document and just rolled their eyes. Often, one procedure can increase the possibility of another procedure.
Pre-written check-off-the-boxes birth plans that are available on many web sites are good to use as worksheets while you are thinking about your birth plan. I have had a healthy 5th pregnancy without gestational diabetes, hypertension or other complications.
This will help give you a sense of whether you have five minutes or five seconds. Are you surprised? Getting so dehydrated that I needed two bags of saline before I could start speaking in complete sentences again. What you want done with your placenta.