What is environment? Use in your own words.

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

Must read story will give if ! in “perseverance,” which theme is reflected in the lines, “life’s field will yield as we make it / a harvest of thorns or of flowers”? a: life is a field in which flowers and thorns will grow. b: accept what you are given, because you cannot change it. c: your life is the result of the work you put into it. d: working together people achieve their goals in life.

What does a change in medium allow the audience to do?