Answer:
C. Minor character.
Step-by-step explanation:
A protagonist in literature can be defined as the lead, principal or chief (main) character in a story, play or film. Thus, a protagonist refers to the character that is being closely followed by an audience or a reader in order to determine the character's fate at the end of the story or play.
Generally, the protagonist in a drama, story or play is usually considered to be a hero or heroine and is mainly opposed or antagonized by another character known as an antagonist.
Also, a minor character often provides support and helps the protagonist. The actions of a minor character helps to move (drive) the story or plot events forward as their actions complements or provides support to the chief (main) character known as protagonist.