Imagine that the Chancellor of HCC is trying to decide whether to use the letter

Imagine that the Chancellor of HCC is trying to decide whether to use the letter grade system or a pass-fail system.  He has asked students, teachers, and parents to write him brief arguments about why HCC should prefer one grade system or the other.  Your task, then, is to write an argument that explains your answer to this question:
Why should the Chancellor choose the grade scale or the pass/fail scale for HCC?
(** Yes, this is essentially the same question asked in the Diagnostic Exercise at the beginning of the semester. While you can start this essay over, you can use your original Diagnostic Exercise as a rough draft and revise it to make it the best argument that you can.  If you reopen the Diagnostic Exercise link, found in the Start Here Module, you can access your original Diagnostic Exercise.)
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STRUCTURE REQUIREMENTS 
You should always include some form of opposition/response for your basic arguments from now on, so make sure that you have one (the form is up to you).
FORMAT REQUIREMENTS 
1] There is no required length (however, I would rather see 6 perfect paragraphs than 8 poor paragraphs—i.e. longer is not necessarily better).
2] Research is forbidden; this is about your ideas and your explanations.  (Important, there will be a penalty assessed against your final score for using any outside sources.)
3] MLA/APA/Chicago Paper format?  Your choice.  Pick one and get it right.  (You will not have any quotations, so you will not have any In-Text Citations or Footnotes, nor will you have a References/Works page.)
this is the Diagnostic Exercise question. SHOULD COLLEGES IN AMERICA USE THE GRADE SCALE OR A PASS/FAIL SCALE?