Answer:
house divided against itself cannot stand." I believe the government cannot endure permanently half slave and half free. ... Lincoln felt that the ideals of freedom for all and the institution of slavery could not coexist — morally, socially, or legally — under one nation.
 
        
                    
             
        
        
        
I believe the answer to the question above is d.
        
                    
             
        
        
        
Yes they did if not nobody would've listened
        
             
        
        
        
The four aspects are consists of : one should be sensitive towards the audience’s needs, adapting “you” attitude, Maintaining standards of Etiquette – emphasizing the positive to avoid negative language and be honest not harsh; should be respectful, tactful and talk with diplomacy, Using Bias-Free Language, building a strong relationship with the audience by establishing credibility.