The correct answer is B.
Poems are not like diaries, even if they are written in the first person. This means that the "I" in a poem is not the voice of the poet, but rather is the voice of a whole other character, the speaker (who is equivalent to the narrator of a novel). Each poem will have its own distinct speaker, which accounts for the different views of spring in this question.
Gothic elements are presented in the book when the author reveals that Dr Jekyll and Mr Hyde are the same people just doubling. This is shown by revealing dark themes of the supernatural when Jekyll transforms into Hyde by the fear of committing horrific crimes as himself and feeling the guilt. Some gothic characteristics this gothic book includes is death and madness which is shown in one of the themes good versus evil. Jekyll and Hyde are metaphorical to the idea of good and evil exist in everyone and the struggle of the two sides raging within Jekyll which result in his death.