Itutional monarchy
8. Unitary forms of government like those of the UK
and Iran differ from federalist systems such as
Brazil and Switzerland in that:
a. Unitary governments place nearly all
authority in the central government, while
federalism involves powers shared between
national and local governments
B. Unitary government are usually smaller
C. Unitary government work best where there is a strong democratic tradition
D. There are fewer unitary governments than federalist systems

A unitary state is a state governed as a single entity in which the central government is ultimately supreme. The central government may create (or abolish) administrative divisions (sub-national units). Such units exercise only the powers that the central government chooses to delegate. Although political power may be delegated through devolution to regional or local governments by statute, the central government may abrogate the acts of devolved governments or curtail (or expand) their powers. A large majority of the world's states (166 of the 193 UN member states) have a unitary system of government.

the answer is a) james madison.

i would go with the last one