As the newly appointed Human Resource Manager for a global organisation, you have noticed performance issues that may be linked to motivational factors. Employees often do not deliver consistent outputs, and a recent client survey identified equity as a potential cause. Considering your knowledge of motivational theories, which one of the following statements can be applied to the scenario? a. Since the scenario could be related to job satisfaction, Herzberg's two-factor theory would apply. b. This scenario can be best addressed by considering equity theory and various factors related to Kelly's model of attribution. c. Considering the complex relationships that exist among motivation, performance and satisfaction, the Porter-Lawler motivational model would be most feasible. d. Employee assistance plans and pay plays a role, and as such, the hierarchy of work motivation could apply