I'm not entirely sure but I think it would be A because usually a character that is not the main voice but more of a sidekick is meant to keep the main character's quest or mission from getting too boring. Logically he/she would be meant to be a funny character to lighten up the mood of the book.
If I am correct and my Business Marketing knowledge isn't wrong, then the answer should be [E] Brand managers.
<em>Hope this helped! :)</em>
Wow when you read this you really notice how some people really are and how others are hurting, but it is true how people only pay attention to the things you do wrong and how they never support you and only bring you down.