Hi! Sorry I'm late, but the answer is 'It shows that the speaker will live with a misery that will never leave him'. I know this because I just took a k12 quiz with this question, and this was the correct option.
It seems that you have missed the necessary options for us to answer this question, so I had to look for it. Anyway, based on the given lines above, the literary device that Sophocles uses in these lines to keep the audience interested is DRAMATIC IRONY. Hope this helps.
Answer:
I am pretty sure it is B.
Your answer is first person
