Because he sacrificed his good friend to ensure that Romans would not be enslaved.
In schools stuff like nationality or race or if the shooter was originally from that school or had a reason to hate the school and wanted to get revenge and make themselves feel better. People can also be on drugs and not know what they're doing.
She is selfless, Viola is in love with Orsino but still chooses to help him be happy, so she is selfless
If the answers above are the choices, it's likely D) Because I don't drive.