Answer:
A. But Britain is the parent country, say some. Then the more shame upon her conduct. Even brutes do not devour their young, nor savages make war upon their families
Step-by-step explanation:
The excerpt that best establishes an angry and accusatory tone is option A.
This is because the narrator first challenges the claim that Britain is the parent country and then shows his anger by shaming Britain and comparing them to brutes, saying that even brutes do not devour their young as Britain had done.