Which best describes a close reading? A. Reading several books and poems quickly
B. Reading work that you are too attached to
C. Reading a small amount of text carefully
D. Reading without preconceived notions

I think it is C) because while reading, you still understand the passage of text. Cause close reading emphasizes the single and the particular over the general, effected by close attention to indiciels words, the syntax, the order in which the sentences unfold ideas, as well as formal structures.

To create unity throughout the poem