Sefronia and Bella Share an Apartment and They Are Deciding

Sefronia and Bella share an apartment and they are deciding whether or not to purchase a weekly housecleaning service.The value of the service to each of them is $50 and it costs $80 to hire a housecleaner.Suppose Bella is lazy and a spendthrift and Sefronia suspects that Bella will be willing to pay $80.What is Sefronia likely to do, given that she is as rational as any other person?

A) She will correctly rationalize that Bella's laziness and spendthrift ways are irrelevant to the decision at hand.
B) She might claim that she is not willing to pay for a housecleaner, hoping that Bella would pay the entire $80.
C) She might offer to do Bella's housecleaning chores if Bella would pay her $50.
D) She will come clean and tell Bella that since Bella is lazy and a spendthrift she should pay a bigger share of the $80.