Explanation:
Instructions are given by the teacher.
"Grass" is actually a poem that was written by Carl Sandburg. This is a poem in which he has published right after the World War I which is in the year 1918. Based on this poem, you can sense an unforgiving tone in it. Therefore, I can say that the attitude that the author expresses is "anger". Hope this answer helps.
An apostrophe is usually used to show possesion.
The art of persuading people to agree with you best describes the definition of rhetoric.
