I picked B. Disability and the logistics that go with it aside, I simply don't have the patience to be a parent. It's not a desirable state of being, IMO, especially in the early poopy/pukey/generally sticky and stinky and crying stages. I'm perfectly content being an uncle since I can hand the children back to their parents once they get on my nerves.
"I was thirsty for everything, but blood wasn't my style" - Live, "Voodoo Lady"