Scarcity is correctly described by which of the following statements?Scarcity exists if there are more uses for resources than can be satisfied at one time.Scarcity exists if decisions must be made about alternative uses for resources.Scarcity would not exist in a society in which people wanted to help others instead of themselves. aI only bII only cIII only dI and II only eI, II, and III

The correct answer is dI and II only.

Scarcity is a fundamental concept in economics. It refers to the basic economic problem - the gap between limited resources and theoretically limitless wants. This situation requires people to make decisions about how to allocate resources efficiently, in order to satisfy basic needs and as many additional wants as possible.

Statement I: "Scarcity exists if there are more uses for resources than can be satisfied at one time." This is correct. If there are more uses for resources than can be satisfied at one time, it means that resources are scarce.

Statement II: "Scarcity exists if decisions must be made about alternative uses for resources." This is also correct. The need to make decisions about how to use resources indicates that those resources are scarce.

Statement III: "Scarcity would not exist in a society in which people wanted to help others instead of themselves." This is incorrect. Scarcity is a condition based on resources, not on people's desires or behaviors. Even if everyone in a society wanted to help others instead of themselves, resources would still be limited and scarcity would still exist. Therefore, the correct answer is dI and II only.