Your answer would have to he A. Noun..
because if "puppy" is underlined then its dealing with a person 'person' 'place' or 'thing' but in this category its a 'thing'. (:
I would say that a character who is a stereotype has an over the top, exaggerated personality.
Fear has changed some of my decisions by causing me to be too afraid to take the chance, and do what I decided I would do.