Answer:
they come to the beginning of sentence source material they can also be occur in middle or in end.
What do you need help on ??
The author's purpose is to give an example of a disadvantage or unfairness between being colored or being white and make the reader more sympathetic to the circumstance.
A writer can express his/her theme through different techniques. Some examples would be word choice, tone, mood, and even characterization. I hope this helps.
