Answer: Hillari Kimble
Antagonist. The antagonist of a story is the character that provides an obstacle for the protagonist. The antagonist in Stargirl is Hillari Kimble, a student who never liked Stargirl, not even the first day she saw her, and not even when Stargirl was very popular.
Explanation:
You don’t need and extra I but there Should be a comma
I hit my foot on the door, and broke it
The third sentence down is the right answer. It doesn't use slang.