Which of the following statements is the economic rule that explains why we stop purchasing goods and services after we have consumed some?

a. we will consume only while marginal benefit exceeds marginal cost.
b. we will purchase goods only while they are marginal.
c. we marginally consume goods and services when the price exceeds the cost.
d. we will consume goods and services whenever the price is low.

John lennon and paul mccartney belonged to this group

"six months ago, several of molly's friends joined the trimtime fitness center. each of them participated in trimtime's weight-reduction and fitness regimen. all reported substantial weight reduction, and all are visibly slimmer. molly is convinced. she joins trimtime and enrolls in the program, hoping and expecting to see the same results. she is especially delighted to learn that trimtime had adjusted its program to make it even more effective in a shorter period of time." what is the feature in question/attribute of interest in this argument?

The dimesions of health operate independently; they don’t affect one another. t or f