Gregory and Wendel are both executives at Guyana Beverage Inc. Gregory is dissatisfied because he knows that

Wendel makes more in salary even though, in Gregory $\text{'}$s opinion, he works longer hours than Wendel does. If

Gregory wishes to reduce this perceived inequity, what should he do$?$

a$.$ He could increase his level of absenteeism$.$

b$.$ He could lower his quality of work.

c$.$ He could reduce the number of hours he works.

d$.$ All of the options.

e$.$ He could ask for a raise.