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.