I cant work out whether you are at school or law school.
The idea of this question is not to get the answer "Ha! x = 5"
but to practise the law bit of reading facts and the law and discussing the two
so it is the abrogation of free speech
and you have to answer / discuss whether free speech IS being controlled
then what the circumstances are when it can ( public safety requires it )
and whether these affect public safety
so yeah it is straightforward
but this is a skill you need to develop and not us
[ it is a bit like a father being asked 'daddy what is 2 + 3' and after about twenty of them Daddy realises that he can add but his daughter needs to learn. some never learn of course)