All of these are defensible. Of course debt rises in war, and decreasing taxes will benefit an economy where taxes are no longer needed (post-scarcity.) Political and geographical boundaries are outmoded and a world without them is not only possible but existed for much of early human civilization. As for the government, a government would run more efficiently when everyone is in basic agreement with what to do and how.
I would question your teacher on this. Anyone can defend these perspectives...
Answer:
supply and demand curves are graphical representations of the price of a good on ... demand and supply determine the markets for products and their equilibrium prices. ... prices of substitutes, prices of related goods, consumer tastes or preferences, ... Relationship Between Level of Prices and Demand
Explanation: