Jack and Donna Have Been Dating and Living Together for Two

Jack and Donna have been dating and living together for two years.Jack always puts Donna's needs before his own,is very supportive of Donna,and devotes a great deal of time and energy to the relationship.Donna,on the other hand,focuses on her own needs and problems and does not exert a great deal of effort when it comes to the relationship.What would equity theorists most likely say about Jack and Donna's relationship?

A) Jack should feel underbenefited and upset about the nature of the relationship,whereas Donna will be content because her needs are being met at minimal cost to her.
B) Jack and Donna should be content with the relationship because people in an equity relationship do not keep track of costs and benefits.
C) Jack should feel underbenefited and upset about the nature of the relationship,and Donna should feel overbenefited and guilty.
D) Donna is overbenefited in the relationship because she is much more attractive than Jack.