Answer:
Giving a counterargument allows the essay/writing to contain more perspectives that strengthen the claims as more perspectives allow the reader/viewer to see an overall "picture" of the argument. Also, being able to "debunk" the counterargument as false or not strong will help in strengthening your own essay/argument.
Including only your side of the argument leaves the reader/viewer no perspective of the whole topic.
The answer is c by the writer
I think it’s the very first or second because they make more sense of how poems are like
Dewey decimal classification
Call number
Category
A. present participle as it ends in -ing