As far as I am concerned Gao was not one of the Songhay Empire's major ones but I bet two answers should be acceptable in this question. I also think that you can include the third option from the scale represented above because <span>Algiers were quite far away on north so they couldn't be the part of the Songhay. </span>
        
                    
             
        
        
        
American forces drove German troops out of Egypt. Operation Torch became a victory for the Allies.
        
                    
             
        
        
        
Cuba threatened to start a war between the United states and the Soviet Union. The Cuban Missile Crisis was the closest the United States of america and the Soviet Union came closest to War. Ultimately it was resolved peacefully.
        
                    
             
        
        
        
I believe the answer is B