The correct answer is: "SCARCE"
The scarcity of resources is the base of the economic science. Economic agents decide about how scarce resources and factors of production are allocated to manufacture goods and services directed to satisfy human needs which are theoretically limitless. Scarcity involves tradeoffs, giving something up to be able to obtain the scarce item that is desired.
Im sure it’s the president
True! if you look at history.com, you'll be able to get greater detail
The economic theory or practice based on the ideas of the English economist John Maynard Keynes