4)I was never kinder to the old man than during the whole week before I killed him. And every night, about midnight, I turned the latch of his door and opened it-oh, so gently! And then, when I had made an opening sufficient for my head, I put in a dark lantern, all closed, closed, so that no light shone out, and then I thrust in my head. Oh, you would have laughed to see how cunningly I thrust it in! I moved it slowly-very, very slowly, so that I might not disturb the old man's sleep. It took me an hour to place my whole head within the opening so far that I could see him as he lay upon his bed.

Ha!-would a madman have been so wise as this? And then, when my head was well in the room, I undid the lantern cautiously-oh, so cautiously- cautiously (for the hinges creaked)-1 undid it just so much that a single thin ray fell upon the vulture eye. And this I did for seven long nights-every night just at midnight-but I found the eye always closed; and so it was impossible to do the work; for it was not the old man who vexed me, but his Evil Eye. And every morning, when the day broke, I went boldly into the chamber, and spoke courageously to him, calling him by name in a hearty tone, and inquiring how he had passed the night. So you see he would have been a very profound old man, indeed, to suspect that every night, just at twelve, I looked in upon him while he slept

In paragraph 4, the narrator describes going to the old man's room every night around midnight. Why is he unable to commit the murder for the first seven nights?

A He needs to have more light in order to see his victim.

B He cannot see the old man's eye, so he lacks the motivation to act.

C He cannot sneak into the room because the old man is a restless sleeper.

D He wants to be merciful, so he gives the old man a few more days to live.