According to Herzberg's two-factor theory of motivation, which statement becomes true once a state of no dissatisfaction has been reached? a. The employee will naturally be satisfied, so managers need not focus on employees' individual needs. b. The manager should strive to create a feeling of equity among all employees. c. A manager's increased attention to motivation factors will not be effective. d. The employee will be motivated to perform, but some attention from managers can increase motivation further. e. Further attempts to enhance motivation via the hygiene factors will be a waste of time