Which of the following best describes the antagonist's role in a story?

The role of the antagonist in a story is to oppose the protagonist, which creates conflict that drives the narrative. This opposition often highlights the protagonist's goals, values, and strengths, making the struggle between the two characters central to the plot. The antagonist can take many forms, such as a villain, a rival, or even a societal force, but their primary function is to create challenges and obstacles for the protagonist. This conflict not only fuels the tension in the story but also allows for character development, as protagonists often grow and evolve in response to the challenges posed by their antagonists. In contrast, the other options suggest roles like support, mentorship, or representation of internal conflict, which do not align with the traditional function of an antagonist.