The point of view is different. You have consider every character. It’s unlikely that you mass descriptions (other than narrators), because you have keep readers interested by making it concise but eventful, while with books you have more flexibility and room to breathe.
C.
because the rest of the sentences have negatives where they shouldn't be
(A): Why is it A? Because, his speech up there basically says, "The way the world is going at this point, there is NO way, we are safe to just stay out of this. We are going to be involved whether we like it or not...AND SOON" That's my attempt at a translation.
Therefore, A, which rephrases this, is correct.
Hope that helps. =)
