We didn't do any of the above, we tore out a carpet instead!
I learned a few things about tearing up carpet.
#1 There are nails that stick out of the bare floor- don't step on them.
#3 There is foam underneath the carpet, which is glued to the floor. Peeling it off is not necessarily easy!
#4 Working on peeling foam off cement is immensely easier with a scraper.
#5 All housework is better while singing along to the frozen soundtrack!
Next up? Painting! (Then hopefully some organization!)