Select the option that can be used as a one-word substitute for the given group of words.

The main character in a story.

Protagonist

The one-word substitute for "the main character in a story" is protagonist.

• Antagonist is the character who opposes the protagonist.
• Leader is a person who leads or commands a group of people.
• Player is a person who takes part in a game or sport.

Protagonist is the main character in a story, the one who drives the plot forward and whose fate matters most. It is the most appropriate word for the given group of words because it specifically refers to the main character in a story.