The quote "money is a strong weapon, and its long arm reaches over miles and miles of land and water" suggests that the narrator perceives money as a powerful tool that can have far-reaching effects. Among the given options, the most fitting implication about the narrator is:
C. She fears Bernard may use his money against her.
This interpretation aligns with the idea that the narrator is aware of the significant influence and power that money can wield, possibly implying a concern about how Bernard's wealth might impact her negatively.