Answer:
The correct answer is B. Provide evidence against him in an academic investigation.
Step-by-step explanation:
If you are in a class that suspects you of cheating, and authority figure like a teacher could easily look on your social media to find out if you had been cheating. This is bad enough in middle school but once you get to high school/college it becomes unacceptable and could get you expelled.
Moral of the story, don't cheat.