The best way to describe Economics is:单项选择题

a. It is the study of economic systems and governments choices of allocating scarce resources to satisfy consumers.

b. It is the study of how markets choose to allocate scarce resources to the production of goods and services in order to ensure an equal distribution for consumers.

c. It is the study of how a government chooses to allocate its products to consumers and firms.

d. It is the study of how society chooses to allocate its scarce resources to the production of goods and services in order to satisfy unlimited wants.