Simon is sincere and believes the stories that he tells. This is the answer because of the word play shown such as " impressive earnestness and sincerity" "he regarded it as a really important matter" this is the only[ answer that makes sense to me.
Help me out then
Other Than him there is 3
I put them in a sentence for you buddy
Answer: I think it's disapproving I am not sure sorry I'm taking it right now too.
Explanation: