Answer:
b. Decrease his inputs
Step-by-step explanation:
The Equity Theory explains the influence that the perception of fair treatment has on the motivation of individuals. Or, from another point of view, in its demotivation.
People tend to compare ourselves to others. With other people's situations, inside and outside work. Thus, we form a perception about what is fair or unfair.
If the result of the comparison is understood as fair, people are more likely to feel motivated. On the contrary, when they perceive that they are treated unfairly, tension and demotivation appear.
In short, when compared to others, people want to be treated fairly for their contributions to the organization. And beliefs regarding what is fair and unfair can affect their motivation, attitudes and, therefore, their behaviors at work.