Rockefeller3.Beginning with a small oil refinery, this man‘s Standard Oil began to put competitors out of business.
 
        
                    
             
        
        
        
Answer:
b
Explanation:
vvvvvvvv best vvvvvvvv bbbvvvbbbbbb
 
        
                    
             
        
        
        
Answer:
D rebuild the southern economy
 
        
                    
             
        
        
        
Answer:
b
Explanation:
hopefully this is the right answer!!!
 
        
                    
             
        
        
        
Answer:
A list of all the elements. 
Explanation: