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.
The answer is a to reinforce the meaning of the content
Answer:
Only reluctantly does he allow Eurycleia to wash his feet. As she is putting them in a basin of water, she notices a scar on one of his feet. She immediately recognizes it as the scar that Odysseus received when he went boar hunting with his grandfather Autolycus.