Final answer:
The poet's use of metaphors in the poem establishes a sorrowful mood by comparing love to death.
Step-by-step explanation:
The statement that best describes how the poet's use of metaphors establishes mood in the poem is option a. By comparing love to death, creating a sorrowful mood. Metaphors are figures of speech that enhance the reader's understanding and evoke emotions. By comparing love to death, the poet is able to convey a sense of sadness and sorrow, setting a mournful tone for the poem.
Learn more about The effect of metaphors on establishing mood in a poem