The best answer choice for the provided text is:
**A. The landlord is a greedy figure who creates problems for the narrator’s family.**
This choice aligns with the context of the landlord being someone whom the narrator's parents fear, suggesting he is a negative influence on their lives. The act of the landlord sitting in a treasure-room and counting dollar bills also implies greed. While the narrator does show mischievous behavior, the primary focus seems to be on the landlord's negative role in the family's life.