I wouldn’t say you’d ask anything at the end. You should always say “It was a pleasure meeting you sir/m’am” or “Thank you for your time”. It’s always good to be polite and show a sign of respect
The answer to this question is cautious.
The correct answer is letter <span>C, it can let the author give lots of factual data to support his argument. Based from the letter given, it was a detailed description as to where his son came from and how he was raised by an Indian tribe. His background does not make him any less of a student than all the other students that are found in his class.</span>