Final answer:
The three types of government are classified by the distribution of power among the various levels of government: centralized in a unitary system, evenly divided in a federal system, and held by regions in a confederation.
Step-by-step explanation:
The three types of government (confederate, federal, unitary) are classified according to the distribution of power among the various levels of government. In a unitary system, power is centralized, with the national government holding the most authority and any lower levels of government being dependent on it. In a federal system, power is divided between the national government and the states or provinces, each having some degree of autonomy. Finally, in a confederation, the bulk of power is located with the regional governments or states, and the central authority is typically weaker.
Based on the information given, it's evident that different systems allocate legislative, judicial, and executive authority to the central and regional levels of government in different ways. The classification of governments into unitary, federal, and confederate forms is based on the degree of autonomy and power the regional governments maintain relative to the central government, which reflects on how they can legislate, enforce law, and apply judicial decisions.