I know you're in the formatting toolbar, but I am uncertain of what mode that would be in.
From searching over the web I see a lot about overtype/insert mode, so I am leaning towards C, but I don't want to get the question wrong for you.
Answer:
a student who researches various websites that show how to gamble online
a student who visits a special website with step-by-step directions on how to make a bomb
a student who posts jokes online about the cultural heritage of other students
Explanation: These are all most likely against school policy. In fact attempting to make a bomb is illegal.
Change the display property of each hyperlink to block.