The Helots were state-owned serfs of the ancient Spartans.
        
                    
             
        
        
        
Now I'm not 100% sure here but C is your best bet
 
        
                    
             
        
        
        
Answer:
The Marshall Plan, also known as the European Recovery Program, was a ... In addition to economic redevelopment, one of the stated goals of the ... Notably, invitations were extended to the Soviet Union and its satellite states.