Choose the two most common ways to organize institutions of the central government. Oligarchial system of government
Unitary System of government
Totalitarian System of government
Federal System of government

Unitary System of government

Federal System of government

Explanation:

In unitary republics, the central government may produce (or abolish) administrative departments. Such factors operate only the authorities that the central government wishes to select. ... A great majority of the world's countries (UN member states) have a unitary system of government.

A federal system of government is one that distributes the authorities of government between the national (federal) administration and state and local administrations. The Constitution of the United States authenticated the federal system, also recognized as federalism.

explanation:

hitler's  "rise" can be considered to have ended in march 1933, after the reichstag adopted the enabling act of 1933 in that month. president paul von hindenburg had already appointedhitler  as chancellor on 30 january 1933 after a series of parliamentary elections and associated backroom intrigues.