!
it was a low, dull, quick sound -- much such a sound as a watch makes when enveloped in cotton. i gasped for breath, and yet the officers heard it not. i talked more quickly, more vehemently but the noise steadily increased. i arose and argued about trifles, in a high key and with violent gesticulations; but the noise steadily increased. why would they not be gone? i paced the floor to and fro with heavy strides, as if excited to fury by the observations of the men, but the noise steadily increased. o god! what could i do? i foamed -- i raved -- i swore! i swung the chair upon which i had been sitting, and grated it upon the boards, but the noise arose over all and continually increased. it grew louder -- louder -- louder!

what word best describes the overall tone of the following excerpt from "the tell-tale heart" by edgar allen poe:
a) amused

b) angry

c) guilty

d) overjoyed