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.
I would help, but do you know what the book is called?
To <span>end segregation.
have a nice day ;)</span>
Explanation:
If teens aren't reading enough. Then their brains start to sort of lose smarts. So the more you read you learn information and it builds up personal experience. This answer make not make much sense but I tried.