In the followoing sentence,"Seasons are celebrations. A year's a Ferris wheel. Both honor our world's habit of spinning 'round a star. " In the first line of this poem the poet id using the figurative language called a metaphor because he is making a direct comparison between two things. So your answer would be B, metaphor.
Hope this helps! If you have any other questions or would like further explanation just let me know! :)
C.
It seems to be the most fitting answer.
The introductory information addresses what the study will entail(talk about)
The setting discusses existing data on your topic and where it takes place
