Jacob Marley was Scrooge's business partner, and the narrator goes to some lengths to make us accept he is dead. His Ghost appears to Scrooge on Christmas Eve with a warning for Scrooge about the need to change his focus in life from money to 'mankind'.
4, it explains the definition very well. i do not think it is to broud either
Okay so the time is around 1920 and it is a neighborhood but they didn't specify the exact location. And the exposition is when Mrs.Liz dies. Jemmie and her family moved to a new city. Jemmie moved next to Cass.