Answer: 4. Must follow decisions made by the central government
A unitary system of government is a government where there is a single supreme government that controls all other subdivisions. This type of government is the opposite of a federal system where powers are subdivided. The subdivisions of a unitary system are unable to act without the order of the supreme arm of government. Hence, in this type of government, there is no division of power. The authority over the country and political divisions is solely the responsibility of the national government and this form of government is collectively more popular than federalism.
The government has three structures: the unitary, federal and confederate structures. With the unitary system, the local offices have the same power as the central government. This means they are managed by the central authority. This is different from the federal structure where the autonomy of local offices is partial and not absolute. Unitary structures have the peculiarity of decentralization efforts. These are evident in England and the Philippines. The United States of America has a federal structure.