Select the most appropriate meaning of the given Idiom:-

Get down to brass tacks 

Getting serious about doing something

The most appropriate meaning of the idiom "get down to brass tacks" is getting serious about doing something. The idiom comes from the idea of getting down to the bare essentials, like the brass tacks that hold a piece of furniture together. In a figurative sense, to say that you are "getting down to brass tacks" means that you are getting serious about doing something and that you are not going to waste time with unnecessary details.

The other options are not as accurate descriptions of the meaning of the idiom. Doing less work is not the same as getting serious about doing something. Working together is not typically associated with the idiom "get down to brass tacks." A greedy person is not typically associated with the idiom "get down to brass tacks."