It was pretty much all C. He must have said "There's a trap door under that slurk isn't there?" at least 5 times. We're a trio of bloodthirsty munchkins though (We're good at roleplaying, just bad at not killing things... honest!), so this was expected. If they'd rolled better on their knowledge local check I'd have been able to give them more information about the boggard, like how the fact that it's even talking to them instead of shooting them with curare darts is a sign that he's different. Meh.