The protagonist can also be called the hero or main character, but these terms are imprecise, and for some stories, plainly false. The protagonist of Macbeth, for example, is clearly not a hero. Nick Carraway is the main character of The Great Gatsby but he is not the protagonist. Get it? A resolution is the part of the story's plot line in which the problem of the story is resolved or worked out. This occurs after the falling action and is typically where the story ends. So I need more info to help you, what novel are we exactly talking about here? Did you write and short story that you need to explain?

Nick Carraway, the story's narrator, has a singular place within The Great Gatsby. First, he is both narrator and participant. Part of Fitzgerald's skill in The Great Gatsby shines through the way he cleverly makes Nick a focal point of the action, while simultaneously allowing him to remain sufficiently in the background. In addition, Nick has the distinct honor of being the only character who changes substantially from the story's beginning to its end. Nick, although he initially seems outside the action, slowly moves to the forefront, becoming an important vehicle for the novel's messages.