C and D are correct i believe.
I would help out with the homeless shelter. Donate food !
Answer: D. It compares the speaker's reflection to a predatory bird that haunts the speaker.
The simile is located in the following lines of the poem:
<em>My clouded reflection eyes me</em>
<em>like a bird of prey, the profile of night</em>
<em>slanted against morning. </em>
In these lines, we see that the author is comparing his reflection to a bird of prey. The implication is that both haunt him, and do not let go of him.
The "unique or single effect" that Poe is attempting to express in this passage is B. SORROW.
It shows how she has waited for a long time to be loved by the person she has loved. That person is the "me" in the poem.
Many and many a year ago depicts a very long time of unrequited love or a one-sided love at stated by the text "no other thought than to love and be loved by me".