B. Thou and know is a slant rhyme
        
                    
             
        
        
        
It could be (B) or (C) though most of the time after writing a rough draft the person will give it to someone else to see if it sounds right then they'll rewrite it if there is something to change, that's why id choose (C)
Hope this this helped
:D
        
             
        
        
        
Answer:
a. you mustn't stop here. 
b. you don't have to eat meat.
C. they mustn't cut the rope.
d. she don't have to be quiet. 
E. mike don't have to go to the doctor. 
f. Derek and Steve mustn't attend church.
 
        
             
        
        
        
Did Jack really say it's not my responsibility? 
The Mayor promised that the project would be completed in two months.
The professor asked, "When was the treaty signed?". 
"You're out of your mind!", exclaimed Tony, slamming the door.
"I'm going to the newsstand", he said, "for a copy of the newspaper." 
The composer asked if the orchestra would play this on Thursday. 
 
        
             
        
        
        
Answer:
the central idea of the poem is that there are many challenges and obsticals on the way to success