Answer:
Motivation
Step-by-step explanation:
The drop in performance in company XYZ following the elimination of the Friday free lunch is caused by the lack of motivation.
Employees of an organization tends to be more productive given a favourable working condition such as subsidized health care, provision of housing facilities, bonuses etc
The free Friday lunch which the human resource management eliminated is a form of motivation for the employees to work hard. So, productivity declined due to the elimination of the free Friday lunch.