Which logical fallacy is used in the text?
I don't trust Professor Harper's findings. Another researcher at her university was caught falsifying data. So, it's likely Professor Harper has, too.
A. straw man: a misrepresentation of an opponent's position that makes it easier to argue against
B. guilt by association: a negative association intended to discredit someone or something
C. circular reasoning: an argument that supports a claim with the claim itself
Select the correct answer from the provided options and reply with the letter associated with it.

B