Which statement accurately describes equity theory?

Resource: chapter $6,$ section $3,$Types of Pay Systems.$$

Question $11$ options:

a$)$

If high performance is followed by a reward, high performance is likely to happen in the future.

b$)$

People will put in only as much work as they expect to receive in rewards.

c$)$

People will perform well only when their job$-$related skills are acknowledged and rewarded amply.

d$)$

People will evaluate their own satisfaction with their compensation$/$inputs by comparing it to others$$ compensation$/$inputs$.$

e$)$

People are highly motivated to work in the absence of the pressure caused by variable pay systems.