The answer would most likely be D, access to productive resources. This was part of the reason that Japan became so aggressive during WWII is because they were expanding to gain resources seeing as how Japan is an island about the size of the state of Ohio. I hope this helps :)
A democracy is a system of government by the whole population or all the eligible members of a state, normally through electing representatives.
I think it replaced Ye Olde Rule of Law in England
I think it came from the Muslim scientist if I remember right from what I just learned