Answer: I think it is 
A. Let distant locations communicate quickly 
Explanation:
 
        
                    
             
        
        
        
I believe it’s A) the creation of new countries
        
             
        
        
        
West Berlin How did Soviets try to gain control
During 1948 and 1949, the Soviets blocked all land travel into West Berlin, forcing the United States to establish the Berlin Airlift to feed and care for the population of the city. In 1989, with communist control of East Germany crumbling, the Berlin Wall was finally torn down.
 
        
                    
             
        
        
        
Answer:
brinkmanship, foreign policy practice in which one or both parties force the interaction between them to the threshold of confrontation in order to gain an advantageous negotiation position over the other. The technique is characterized by aggressive risk-taking policy choices that court potential disaster.
Explanation:
srry if this didn't make sense to you