Select the correct text in the passage.

which three sentences in this excerpt from edgar allan poe’s “the tell-tale heart” show that the narrator feels his crime will not be discovered?

when i had made an end of these labors, it was four o'clock—still dark as midnight.  as the bell sounded the hour, there came a knocking at the street door.  i went down to open it with a light heart,—for what had i now to fear?   there entered three men, who introduced themselves, with perfect suavity, as officers of the police.  a shriek had been heard by a neighbour during the night; suspicion of foul play had been aroused; information had been lodged at the police office, and they (the officers) had been deputed to search the premises.

i smiled,—for what had i to fear?   i bade the gentlemen welcome.  the shriek, i said, was my own in a dream.  the old man, i mentioned, was absent in the country.  i took my visitors all over the house.  i bade them search—search well.  i led them, at length, to his chamber.  i showed them his treasures, secure, undisturbed.  in the enthusiasm of my confidence, i brought chairs into the room, and desired them here to rest from their fatigues, while i myself, in the wild audacity of my perfect triumph, placed my own seat upon the very spot beneath which reposed the corpse of the victim.