Read this excerpt from The Miracle Worker. ANAGNOS: . . . It will no doubt be difficult for you there, Annie. But it has been difficult for you at our school too, hm? Gratifying, yes, when you came to us and could not spell your name, to accomplish so much here in a few years, but always an Irish battle. For independence. Which element of drama does the author use in this excerpt?

Something there is that doesn't love a wall, that sends the frozen-ground-swell under it, and spills the upper boulders in the sun; and makes gaps even two can pass abreast. the work of hunters is another thing: i have come after them and made repair where they have left not one stone on a stone, but they would have the rabbit out of hiding, to the yelping dogs. the gaps i mean, no one has seen them made or heard them made, but at spring mending-time we find them there. whom does the speaker blame for the gaps in the wall? himself his neighbor nature and hunters rabbits and dogs