Goodmorning , comment something your stuck on . I'll reply to all comments !!! Message me if you you do not understand :(

If the singular term ends in -us, the plural is usually formed by changing the ending to

When a person undergoes root canal treatment or another endodontic treatment: [select all that apply] a.) the inside of the tooth is carefully cleaned and disinfected. b.) air is forced into the canal to stop bleeding. c.) the inflamed/infected pulp is removed. d.) the inside of the tooth is filled and sealed with a rubber-like material called gutta-percha

Which step in healthy decision making requires you to look at the decision you made and determined whether different actions would have produced different results