I believe the answer is d.
The democracy in Greece. Greek democracy is what most democracy in the modern world is based on.
When a diffusion comes along it usually causes diversity between the people who diffused it.
example:
john : i hate this culture!
jane : shut ur mouth !
john : this needs diversity !
Actually, yes, it happens everywhere. most of the time some people believe in their own beliefs and get too hard headed and shallow to even process that not everyone has the same beliefs/practices that doesn't mean they're right nor wrong just different. like Atheism & Christianity; its a huge topic people discuss that usually always turns heated.
