The answer is a which is the tendency to ignore evidence against your beliefs
The action you should take is to do what you can to help her by squeezing her belly to get the stuff out of her throat or call a neighbor even though I don't think there is time for that.
Well if you already have the silver stuff on your tooth the only way to get it out is if your tooth falls out or if the stuff scrapes off...or you could just lower the amount of sugar intake you have.
Hope I could help!!