Answer:
b. arrange for employees to see funny videos at work
Step-by-step explanation:
The major function of a Production Manager is to ensure manufacturing process and production lines work effectively without any issues and minimum downtime.
Being on the production floor with a good sense of humor and work appreciation by the manager of a production unit can improve employees' moods.
Arranging for employees to see funny videos at work will require taking time off the production line which will increase the downtime.
Therefore, arranging for employees to see funny videos at work would likely be of the least use to improve her employees' moods.