The author's prior knowledge with some opinions from others
Answer:
I do!
Explanation:
I love shinichi so much like I can't even begin to describe how smart he is- and don't even mention the rest of the detective boys like they're so freaking cute sdjgshdgjshdg
and ran? don't get me started on her, like afterr 900+ episodes she still hasn't found out that conan's shinichi, but i mean she's amazing and beautiful and i-
well anyway glad I found someone who watches detective conan aswell!
Answer:
"That afternoon I was sent out again to sell some goods to the soldiers. "
Explanation:
All but one are said in the first narrative, so you can rule the last one out. I believe this one is the answer, as it mentions the narrator being sent somewhere to sell to soldiers, which means that he is a merchant, or believed to be one.