Answer:
Andrew Carnegie
Explanation:
He is an American industrialist, he led an enormous expansion of the American steel industry in the late 19th century.
Because he was mean to his brother
It is set by multiple levels
The Marshall plan helped in stopping the communist aggression and expansion in Europe during the Cold War by establishing a global trade wherein it emphasizes "free market" and "encourage European peace." The plan helped to economically sustain and stabilized the war-torn countries in Europe.