The correct answer is C. Antagonist
Explanation:
In stories or narratives that include films, the antagonist is the evil character that opposes the main character or protagonist and that usually acts against the protagonist and becomes an obstacle for the main character. Additionally, antagonists can emerge during the story as one of the characters that seem static suddenly changes or remain as an antagonist from the beginning to the end of the story. This type of character is the one that fits with the personality and traits of Ronald in the case presented because Ronald is an evil character that stops Alan (the protagonist) from achieving his goal and acts against him by providing false information about Alan.
