Your answer is:
<u>A. Because it will help reduce traffic, air pollution, and noise pollution</u>
<u>in our town, Easton should limit the amount of nonresidents that</u>
<u>can drive in or through our city.</u>
<u></u>
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.