They show that the worst part of the train ride may be over. ... In this excerpt, the author shows how terrible conditions can cause people to be unsympathetic to the pain of others.
 
        
             
        
        
        
Answer:
last one
Explanation:
because I'm other sentence if we read 
it is not meaningful but last one has meaning
 
        
                    
             
        
        
        
Founder for sure not tutor