If I know horror tale I would pick spaghetti, sans will confirm that you earned pap’s trust and is basically safe (because sans and papyrus are basically the head honchos of Snowdin) and if sans or papyrus (most likely papyrus) see you in danger they will help you.
Reviews for "Sans' Advice"
Spaghetti
spaghetti
Spaghetti
I'll eat the spaghetti cause sans will kill you :-/