Answer :
The passage show the types of problems Chinese immigrants faces in the early 1900 s in a sense that, the boys are throwing rocks at the narrator and his father because they are Chinese.
Option A.
Explanation:
Dragon wings by Laurence Yep is an adventurous novel for children which tells a story of a Chinese immigrant.
From the passage, we can figure out the problems faced by the father and his son, on their every new trip they would come across children or boys who treat them unwell by throwing rocks. And this was mainly because they were Chinese, and because of this the son finds himself quite frightening and unfamiliar.