Answer:
a 5S program
Explanation:
This action likely occurred from the use of a 5S program. This is a program that focuses on the 5 S' which are Sort, Set in Order, Shine, Standardize, Sustain. These are used in order to analyze everything in an area in order to decide what is or isn't necessary, put things in order, cleaning, and setting up procedures for performing these tasks on a regular basis. Which is what the clerk has done by identifying these most and least frequent forms and organizing them accordingly for use on a regular basis.