Answer:
D) zone of tolerance.
Step-by-step explanation:
Zone of tolerance: It defined as the service acceptance level of the customer beyond which the customer does not tolerate the service. it is an area between desired service and acceptable service, the acceptable service is the standard service in the market, which is made by advertisements and other communication sources.
In the given case, Nicole is able to deliver the acceptable service to the customer instead of being understaffed as she knows customerĀ“s "zone of tolerance" before going elsewhere.