Which of the following is NOT one of the 5 S's?

The 5 S's is a methodology used to maintain an organized and efficient workplace, originally developed in Japan. The correct answer pertains to the terminology used in this framework.

"Sort and remove" refers to the process of distinguishing between necessary and unnecessary items in the workspace, which is part of the first S, Sort. "Shine" pertains to cleaning and maintaining the workplace to ensure that everything is in its proper condition. "Sustain" is about maintaining the discipline and habits established by the previous S's over time, ensuring that the processes remain in place.

The term "Separate and Discard," while it might seem related to the initial sorting process, does not accurately reflect the terminology of the 5 S's. Instead, the appropriate term is simply "Sort." Therefore, the option that introduces a term not associated with the 5 S's is indeed the one that is not part of the framework, making it the correct selection.