D.
B.
C.
A.
I think that those are the correct answers.
Bullying is the most common type of relational and interpersonal brutality teenagers in school and school-based or related activities. Most schools or school related activities have shown only a slight or limited success in reducing students or those in a school based setting’s behavior and attitude.
The answer is True.
I hope this helps:)
The text:
__________
"Then he began teaching at Pinkerton Academy."
__________
is NOT a "run-on" or "sentence fragment"; rather, it is a complete sentence.