Walls Had Protection From Armies
I think A. would be the best answer
Explanation:
I believe the middle region
It was "mountain ranges in the north and west" that helped India develop for thousands of years in this way, since these mountains were very hard to cross with large armies.
He wanted himself to change as much as he wanted others to change as well, but he saw that it was a very difficult task to change oneself, and by seeing that, he understood the challenges he would face when changing the people.
