Concept:The poem "A Slumber Did My Spirit Seal" is a famous lyrical ballad by the Romantic poet William Wordsworth, part of the "Lucy" poems series.Explanation:William Wordsworth wrote this poem in 1798, and it was first published in the 1800 edition of *Lyrical Ballads*. The poem reflects on the death of Wordsworth's beloved Lucy, expressing the poet's deep grief and the sense of finality that death brings. The line "A slumber did my spirit seal" metaphorically describes the poet's soul being shut off from feeling after the loss. Among the given options, only William Wordsworth is the correct author; P. B. Shelley, William Shakespeare, and John Keats wrote different works.Answer:The correct answer is William Wordsworth (option B).