I also ticked "unsure". While I agree that ideally, birth shuld be as natural as possible, if I hadn't gone with my intuition and agreed to have a C-Section for my second child Zeke, he would have died during birth due to severe congenital heart defects that were not picked up on any ultrasound beforehand.

So even though there was a medical reason, it was an "unknown" one when I made my decision. At the time, I just felt really strongly that I had to have a C-Section, regardless of the risks involved.