You do not need to take the ACT at all. If you want it to replace the SAT, you need to take the Plus Writing. You may submit either test's score -- or both -- to any US university.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.