Answer:
I think its:
C. Innovators figured out how to produce steel cheaply
America is a 1st world country with plenty of job opportunities and better living conditions a than most other countries.
Answer:
the Allies' desire to seek retribution for Germany's actions
Explanation:
hope this helps
Answer: option b is the answer
Built a fantastic city in the Andes where stone masons fitted gigantic blocks of stone without help
created a system of picture writing carved in stone
