Answer: mice is the standard form
I think it is Plain Folks. I'm not 100% on this but I do think it's plain folks.
Which words are supposed to be bold?
Answer:
The point of view for this story is third person since the person narrating is not part of the story and there are “he”, “she”, and “they” outside of quotation marks.
Explanation:
“The Golden Touch!" exclaimed he”