The best and most correct answer among the choices provided by the question is the third choice. It best supports Thoreus' arguments because it <span>uses his personal experience of civil disobedience to build ethos. </span>I hope my answer has come to your help. God bless and have a nice day ahead!
        
                    
             
        
        
        
Answer:
Forgettable. How's yours?
Explanation:
 
        
             
        
        
        
Refute means to :
prove (a statement or theory) to be wrong or false; disprove.
prove that (someone) is wrong.
deny or contradict (a statement or accusation).
So, I'll go for... 
O An opposing alternative way to view or interpret the topic 
Or it could be 
O An explanation that disproves something
Hope this helps! 
 
        
             
        
        
        
Answer A makes sense for me
the other sentence is B therefore 
because therefore means so
my teacher was very ill therefore (so) a substitute was called to finish the day