Answer:
D. ability to make major changes in a short period of time
Explanation:
While other options are can be true of a command economy in certain situations, option D is the only option that I would classify as an advantage of a command economy over a Market Economic System. However, major changes in a short time can have disastrous consequences, for example the 6-7 million deaths that resulted from Stalin's five year plan.
Borders, the countries want more land to represent them and have more power and if they have that then they also have more oil and water.
This is a democracy due to that when this country rose against England, it was motivated to have a say in government and laws which it felt were unfair and had people to give them say in government affairs. Hence, this a representative democracy. Citizens vote for their government officials and the checks and balances prevent one branch from having too much or too little power. These officials represent the citizens' ideas and concerns in government.