Answer: Imperialism 
Explanation: European expansion into the western world was the biggest factor in them becoming involved into world war I.
 
        
             
        
        
        
Answer:
Sharpeville massacre, (March 21, 1960), incident in the Black township of Sharpeville, near Vereeniging, South Africa, in which police fired on a crowd of Black people, killing or wounding some 250 of them. It was one of the first and most violent demonstrations against apartheid in South Africa 
hope this helps :)
 
        
             
        
        
        
The answer is probably either a monarchy or a dictatorship
        
             
        
        
        
Founded one of the first anti slave societies
        
             
        
        
        
Hi, 
The answer should be letter B. The other three options refers to sources that are based on other sources.