Not enough choices. I picked IWB and "other", but as often as I carry IWB, I carry on a belly band attached to a support bra. That's a very good place to hide a small (or even not-so-small) gun on many women, as long as you make sure you can get to it quickly if you need it.
I've also carried OWB concealed (with a proper cover-up garment) and occasionally in a purse, although I try not to. (I've concluded that in a purse is better than not at all, but to be avoided wherever possible because of the risk of having the purse *and* your weapon snatched at the same time.)