Read the following excerpt from Sonnet XLIII, "What lips my lips have kissed, and where, and why" by Edna St. Vincent Millay:

What lips my lips have kissed, and where, and why, I have forgotten, and what arms have lain Under my head till morning; but the rain Is full of ghosts tonight, that tap and sigh Upon the glass and listen for reply, And in my heart there stirs a quiet pain For unremembered lads that not again Will turn to me at midnight with a cry. What aspect of this poem most clearly marks it as a work of Modernism?
A. It combines human emotions with the influence of the supernatural.
B. It uses very few words to communicate its message.
C. It carries a long, detailed idea over several lines in a single sentence.
D. It presents a complex, bittersweet perspective toward romance.