D.
Put a baby gate in her doorway. This way she doesn't have to stay in bed (there is no way to do this, other then to tie her in) but she does have to stay in her room. Just baby-proof her room and don't allow any toys in there. This way it will be to boring and she'll go back to sleep. Also, put up the remote so she can't reach it, and turn off the cable box so even if she turns on the tv it will only be black and again to boring to stay up.