Answer:
having a damaged reputation 
Explanation:
discredited means to lose your respectability. 
Using context clues, why would the witness have left the courtroom in humiliation? It can't be because they have good judgment or that they were honorable. That leaves "sorrowful" and "having a damaged reputation." Having a damaged reputation is more tied to humiliation, but if you didn't pick up on that, credited means of respect and the opposite most closely means having a damaged rep.
 
        
             
        
        
        
It describes the word arrived. Arrived is the verb and late describes how he arrived. Hope this helps!
        
                    
             
        
        
        
Answer:
I would say that is A. True
 
        
                    
             
        
        
        
I think the correct answer is D.