You are a graduate teaching assistant in the biology department at fairview university. you have several graduate student friends who have graduate appointments in the business department and the english department. while everyone's compensation and employee benefits are exactly the same, your department requires you to always show up and tutor students at least four hours each day and to serve on one university committee each semester. graduates students at the other departments are not required by their management to follow these rules. lately, you are doing your best to limit your daily obligation to 2½ to 3 hours each day. the motivational theory that most closely correlates with your actions is: a. equity theoryb. expectancy theoryc. reinforcement theoryd. goal-setting theory