When you make the many consumption decisions you make every day, you are: Select one: thinking at the margin, whether you realize it or not.

When you make the many consumption decisions you make every day, you are:

Select one:

a. thinking at the margin, whether you realize it or not.

b. probably not thinking at the margin, so your decisions could be better.

c. actively and deliberately thinking at the margin.

d. probably not thinking at the margin, which improves your consumption decisions.