Answer: credentials
Explanation:
In order for a research source to be useful, its author(s) must have credentials.
We should note that the credentials of an author has to do with the skills, information and the education that an author has that makes the author qualified to be able to elwrite on a particular topic.
2- A, Arsonist
3- D, Exhibited most likely.
4- A, Denouncing
5- D, Code.
6- A is the likely choice, as well as C. I'd go A for the fact that it's a clear boom.
-Assisted by Agarvated
She wrote “The Yellow Wallpaper” in first person to depict a woman’s mental breakdown naturally and objectively.