Answer:
Don Ray’s desire to gain insight into his home country of Canada took him to an unexpected place — Africa.
While in university, Ray was faced with the choice of studying either Canadian or African politics.
“I thought that I would better understand my country by understanding what was happening in other parts of the world and then bringing lessons back from there to Canada.”
Now a professor in the Department of Political Science at the University of Calgary, Ray is still learning lessons in Africa that he hopes to share with the North.
Explanation:
B, the Incas- google Machu Picchu and you'll see precisely fitted blocks of stones in their buildings and structures
Of the eight largest countries in the world by area, seven—Russia, Canada, the United States, Brazil, Australia, India, and Argentina—are organized on a federal basis. (China, the third largest, is a unitary state
The passage illustrates 3) Spheres of influence.
I don't know if James Watt is one of your choices, but if it is , then that's the answer.