Which clue the reader know that the narrator has gone mad enough to kill the old man?
a. seeing the vulture-like eye causes the narrator to become furious.
b. the narrator realizes the old man has been awake for an hour.
c. opening the door to a dark room makes the narrator feel powerful.
d. the narrator discovers that he has heightened sensitivity to sound.

A. Seeing the vulture-like eye causes the narrator to become furious.

Explanation:

The indication that the aids the audience to understand the reason behind the narrator being 'mad enough to kill the old man' is that "seeingfurious"(first option) exemplifies that the old man must have witnessed some forbidden action of the narrator. This filled the narrator with distress, anxiety, and fear to be exposed and thus, he freaks out at the old man up to an extent that he could kill him. Thus, the first option illustrates the reason for the narrator's drastic move to murder the old man while the other options sound irrelevant or unjustified to the context of the narrator's fuming action to kill him.

- "a.) it includes letters and books gathered over 1200 years, and consists of two parts.

- most of the new testament is letters from paul to the different churches, and since there's a new testament that means there is an old testament. "

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