Answer: I believe the Answer is B-- The place where most people in ancient china lived.
Explanation: 
Ancient Chinese civilization began along the Huang He river, or "yellow river". I don't know how they were with farming, but because that's where their civilization began, I'd imagine that that's where most people in ancient China lived. 
 
        
             
        
        
        
A) Primary Source since that person experienced that event directly
        
             
        
        
        
Pennsylvania passed the first antislavery law
        
                    
             
        
        
        
Soviet union
After the Cuban Revaluation of 1959, Cuba became increasingly dependent on the soviet union.