In 1945, after the defeat of Nazi Germany, Poland's borders were redrawn in accordance with the decisions made first by the Allies at the Tehran Conference of 1943 where the Soviet Union demanded the recognition of the military outcome of the top secret Nazi–Soviet Pact of 1939 of which the West was unaware. Hope this helps :)
 
        
                    
             
        
        
        
Answer: B. because most of the merchants were Arabs
Explanation:
 
        
             
        
        
        
There are 30 perfect squares
        
             
        
        
        
There were no longer slaves involved