The Textbook's Example of Management Training at Graybar Electric Discussed

The textbook's example of management training at Graybar Electric discussed a training technique where a team of trainees listened to a presentation by an international advertising agency CEO about the creation of customer loyalty.The trainee team then drafted an article for the Graybar newsletter on how to strengthen Graybar's brand with its customers.This is an example of

A) how poorly planned training results in time-wasting exercises.
B) using real business problems for training practice.
C) using performance consultants such as the ad agency CEO.
D) the use of reinforcement and immediate confirmation.