It's a boys boarding school.
They show the similarities of all the teachers, and then they show how different Mr. Keatings is compared to them.
<span>Todd is quiet and doesn't want to get involved.
hope this is what your looking for :)</span>
So A doesn’t really go with it so you can rule that out. The main character doesn’t get introduced can you can rule out D too. It’s between B and C. I honestly would go with C the author sets up the hook of the story.
The answer will be A. Harmful it says it in the definition.