April 19, 1775 - September 3, 1783
(8years, 4months and 15 days)
It was taught<span> by Aristotle :)</span>
Equality for all citizens!! The answer is c
I am going to go ahead and say that your answer is C because regions can end for many reasons and most of which I'm certain of which are affected by the physical characteristics of the region.
I hope that this helps. :)