Write a letter to your father asking for a

What is the meaning of the word checking as it is used in this sentence from the second paragraph of the passage?

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

Which type of presentation aid is depicted in the image above? a. object/topic itself b. illustration c. chart d. technology