Answer:
IT IS C!!!! :))))))))!_+$!_+$_+++_+#+_
Citrus fruit originated in the new world in 1943
A because mexico renter ed the 20th centriy
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. :)