The Customer Service Department of a Large Department Store Recently

Multiple Choice

The customer service department of a large department store recently received a complaint about a store associate.The store associate's manager has been unable to detect any problems with the associate's performance.Then the service department received another complaint concerning the same associate.Which of the following would be the best approach to investigate the situation?

A) depth interview with associate
B) mystery shoppers
C) depth interview with customers
D) close observation by the department manager
E) one-way mirror observations