<span>c. they help writers focus on the task and organize their writing.</span>
        
                    
             
        
        
        
Answer:
they are all married 
Explanation:
there isn’t a single person on board. It is possible because the boat is filled with people, who are not single. It denotes the marital status of everyone. So the people who all are present in the boat are not single; they are married.
 
        
                    
             
        
        
        
I believe it’s c, I don’t know 
Hope it helps
        
                    
             
        
        
        
Answer:
Slavery was the main issue dividing the main parties.
Explanation:
The election of 1856 in which James Buchanan won as a Democratic presidential candidate, against the Know-Nothings party and the Republican party, shows that "Slavery was the main issue dividing the main parties."
This is evident in the fact that the Democratic party was perceived by the public as a party in support of slavery. 
Hence, some Democrats and Whigs party members fall out to form new parties, the Know-Nothing Party, and the Republican party.
The Know-Nothings party has the ideal of anti-immigration, while the Republicans have the anti-slavery ideals.