The reason why cities in the United States grew so rapidly was because of Industrialization. Americans responded to the challenges posed by urbanization by:
- Getting involved in labor strikes. 
 - Campaigning for more government interference in the labor sector. 
 
<h3>Why did cities grow in the U.S. ?</h3>
As a result of industrialization in the urban areas, many people left the rural areas to look for in the cities and towns. This led to the cities growing in population and opportunity. 
<h3>How did Americans respond to urbanization challenges?</h3><h3 />
They engaged in labor strikes when owners of businesses would not accede to labor demands. 
They also campaigned for the government to pass more laws that would reduce pollution and limit the exploitation of the working class by business owners. 
Find out more on American urbanization at brainly.com/question/2437329.
 
        
             
        
        
        
Answer:
The United States intended the Medicine Lodge treaties to remove Indians from the path of American expansion, thereby avoiding costly wars. The articles of the treaties defined reservation boundaries, the Indian agent's role, and the government's obligations to the tribes.
 
        
             
        
        
        
Answer:
The United States believed that the economic aid provided by the Marshall Plan would help contain the spread of Communism.
 
        
                    
             
        
        
        
The answer is b,c,d. I hope this helps someone.
        
             
        
        
        
Horace Greeley was the only presidential candidate to die during the electoral process