The poem is a sonnet. Which best analyzes the relation of form and meaning in this sonnet?
A. A turn, or change in thought dividing the poem into two sections, occurs in line 9, when the speaker begins to tell about the music of nature.
B. A turn, or change in thought dividing the poem into two sections, occurs in line 9, when the speaker begins to tell about the type of music she prefers.
C. A surprising final insight appears in lines 13-14, when the speaker concludes by mourning the arrival of autumn and the end of the year.
D. A surprising final insight appears in lines 13-14, when the speaker concludes by celebrating the fruits of her efforts at composition.