Which is the best explanation of how setting helps to reveal the theme?

Which of these are central ideas of chapter 4 of wheels of change? check all that apply.

How would “in a station or the metro” change of the bough was bright and lovely rather than wet and black a: the station would seem cheerier b: the poem would not be considered imagist c: the people would seem less pleasant. d: the poem would no longer be hokku

What is most likely nelson mandela's purpose of using third person point of view after introducing himself in his introductory paragraphs