A Shopper Service Is A(n)

A shopper service is a(n) :

A) service offered by many businesses to assist guests who are unable to visit the operation in person.
B) Internet­based buying service that offers managers greater control of the purchasing and receiving function.
C) system of supply in which vendors automatically resupply the restaurant on a schedule determined by the food and beverage manager.
D) control tactic that involves observing and reporting the actual operations of a business.