单项选择题
The word "scourge" in the sentence "The words seemed to suggest that Covid-19 didn't matter much if it was a scourge only among the old." means __________.
A、something that exists and can be seen, felt, tasted, etc.
B、a thing that causes trouble or suffering
C、the work of a person, group, or organization to achieve something
D、a method for doing or achieving something, usually involving a series of actions or stages