Its c. high school students should be required to community services in order to graduate.
Answer:
The electromagnets are the magnets which shows magnetic properties when the electric current pass through them. They are temporary magnets, they can be turned on or off when desired. Moreover, large amounts of scrap steel can be moved easily from one place to another with electromagnets.
HOPE IT HELPS!
D. Students. It would affect the student body the most, and I doubt teachers would like to or need to "take a stand on what you wear". Hope this helps :)