Answer:
I would say B
Explanation:
Many people use social media, so with a bit of targeting, one can easily reach a large number of their intended audience.
 
        
             
        
        
        
Answer:
Letters and publications written by Nazi leaders before the Second World War.
Explanation:
This answer is correct because this historian is searching for the motives of these perpetrators, letters and publications can tell their thoughts and conversations.
 
        
             
        
        
        
C. The Third Agricultural revolution is also referred to as the Green revolution
        
             
        
        
        
Answer:
Hamilton agreed to support a plan to move the capital to the South to gain support for his financial plan.