How does this passage show the types of problems Chinese immigrants faced in the

How does this passage show the types of problems Chinese immigrants faced in the early 1900s?
A. The boys are throwing rocks at the narrator and his father because they are
Chinese.
B. The narrator calls the boys demons instead of calling them Americans.
C. The horse has a traditional Chinese name, Red Rabbit, instead of an American
name.
D. The narrator and his father ignore the boys instead of confronting them for their
actions.