Question

elementary school students often trade food items at lunch in an effort to have the best lunch possible. in one elementary school, pudding cups have become so popular that they have become a unit of account. this means that (1 point)

○ a pudding cup will likely have the same purchasing power tomorrow as it does today.

○ students are eager to accept pudding cups in exchange for any lunch item.

○ a pudding cup entitles its holder to a share of some valuable asset.

○ the price of other lunch items is expressed in quantities of pudding cups.

Explanation:

A unit of account means a common measure for expressing values. If pudding cups are a unit of account, other items' prices (values) are in pudding - cup terms. Purchasing power stability (first option) isn't about being a unit of account. Eagerness to accept (second option) relates to being a medium of exchange. Entitlement to an asset (third option) is more like a security. So, the price - expression (fourth option) fits the unit - of - account role.

Answer:

the price of other lunch items is expressed in quantities of pudding cups.