what is a key characteristic of being \rich\ as described in the video? not worrying about money having…

Brief Explanations:

Being rich often implies financial security and the ability to maintain one's lifestyle over time. Sustainable wealth means having assets and income - generating sources that can last, which is a more comprehensive and long - term characteristic compared to just having a large sum of money or not worrying about money in the short - term. Financial freedom is also related to sustainable wealth as it allows one to make choices without financial constraints.

Answer:

B. Having sustainable wealth