Answer:
Sectarianism is a form of prejudice, discrimination, or hatred arising from attaching relations of inferiority and superiority to differences between subdivisions within a group.
A noun is a person, place, or thing. The nouns in this sentence are the people, the places, and the things, meaning the answer is D. Boy and girl are people, school is a place, and hands are things.
It's a redundant sentence because it does not need to say "over and over" and "and repeated it. Also those two phrases are double negatives. It could also be called a run on sentence.
