It may help to think of the relationship between a "directive" and being "given directions" (i.e. Orders). "preprocessor directives" are directions to the preprocessor about changes it should make to the code before the later stages of compilation kick in.
But, what's the preprocessor? Well, it's name is a bit recursive: it's simply there to process the textual source code, modifying it in various ways. This extra process gives more flexibility in selecting, combining and even generating parts of the program.
Include is the preprocessor directive, is just an argument supplied in addition to this directive, which in this case happens to be a file name.
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.