Final answer:
The requirement for salespeople to greet customers is an example of an operational policy (option 2), which ensures consistent service and enhances customer experience.
Step-by-step explanation:
Requiring all salespeople to greet customers immediately upon entering the store is an example of an operational policy. This policy is a specific rule or procedure set by a business to ensure consistent and effective operations within the store. It is part of the internal management of a company rather than an external marketing strategy or sales promotion. Operational policies are crucial in maintaining a standard of service that can contribute to the customer's overall experience and satisfaction.