Answer:
C. Neolithic
Explanation:
The Neolithic era was where there were many Agrarian societies, which also happened to be the most organized era. This was the beginning of the stone age, where farming really started and the domestication of farm animals.
Omg you said WTHeck!!!!!! I am guessing they just want us to fail in the future...but we are totally gonna need to find x and y in the future!! lol :)
Guam, Texas, parts of mexico, cuba (for a bit), philipines until after ww2, puerto rica, us virgin islands and I think that's it