The question is asking to state the reason why might Mark Twain have written about lower class citizens in his satires, base on my research, I would say that the answer would be that to reflect the realities of life in his writing. I hope you are satisfied with my answer and feel free to ask for more
Answer:
If I understand the question correctly, I would say:
a comparison-contrast structure
Explanation:
Are you asking for the answers to write technically a essay for you?<em> </em>