Answer:
A. Interchangeable parts made mass production easier and cheaper.
Explanation:
The coup was the culmination of a conflict between the old and new political, economic, and social orders that had been under way since Gorbachev had risen to power in 1985. His perestroika and glasnost reforms had set in motion forces that were bound to collide at some point.
I believe your answer to this is the Nubian civilization.
Number 1: A
Number 2: C
Number 3: A
I don't know for sure if this is right!
Hope I helped! :)
