D.) used violence and intimidation
John D. Rockefeller and Andrew Carnegie were crucial platers in the modernization and development of the U.S economy. Although their monopolies devoured their field of business and caused suffering for many under their rule, the lessons we learned on how to limit business has been crucial to the survival of our nation. It is due to the businesses they made and the lesson they taught that we should celebrated them as ambitious “Captains of Industry”
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Answer:
airplane flight to be london
The correct answer is B) emergence of a written language
Unlike the other mentioned things, emergence of a written language did revolutionize Native American cultures. Everything else mentioned here was just there and completely normal as they were hunters and what not.