Which of these groups of workers is not a part of Handy's Shamrock organization? #1 Outsourced workers
#2 Flexible workers
#3 Senior management
#4 Core staff

#1 Outsourced workers

Explanation:

Outsourced workers are not employees of Handy's Shamrock organization. They are workers who have been contracted by Handy Shamrock to carry out specific functions.

In most cases, outsources workers are employed by a company that specializes in certain tasks. For example, Handy Shamrock may need cleaning workers. Instead of hiring cleaners, they may contract a cleaning company to do the job for them.  The cleaning company workers that will be cleaning at Handy Shamrock will be outsourced workers.