<span>A complete subject includes the simple subject plus any modifiers (descriptive words) that might describe the subject.</span>
In any story, or a specific one?In general, a protagonist is the main character, the person who takes the center-stage in a story. For example, Katniss in the Hunger Games, or Holden Caulfield in the Catcher in the Rye
We need the passage in order to know what author's POV is