Ampertonde, a company that sells consumer durables, decides to take its top 20 best-performing salespeople on a two-week cruise. Furthermore, the management mandates that the other salespeople who are not among the top 20 will have to report for work during those two weeks. Which of the following theories of motivation does this scenario best illustrate? a. McClelland's learned needs theory b. Alderfer's ERG theory c. Equity theory d. Reinforcement theory