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.
The correct answer is C. <span>The speaker in In Memoriam, A. H. H. is the poet, but the speaker in “The Lady of Shalott” lacks a specific identity.
"In Memoriam, A. H. H." is a very personal poem about the loss of Tennyson's dear friend. The speaker talks in the 1st person, thus providing the poem with a tone of deep, personal grief over the friend's premature death. The poem is rich with drama, as the speaker questions God's existence, Christian ethics, wonders and enigmas of nature...
On the other hand, the speaker in "The Lady of Shalott" is anonymous but, in a way, omniscient - as if he knows everything, all the secrets, intimate feelings of the mysterious Lady, magical spells that bind her.</span>
