Answer:
C is the best answer. By the way answer D applies very well to India
You can see where it conquered and where it got conquered. You can also see if it's isolated or not which can lead to different results.
I think the correct answer is false. Most of North America do not have the same climate type. Climate can differ all over the U.S. One moment it can be 100 degrees in Texas and In Ohio it can be only 60. Hope this answers the question. Have a nice day.