Sistema político en el que el poder ejecutivo es encabezado por un monarca o presidente que cumple la función de jefe de Estado y un primer ministro que ejerce como jefe de Gobierno." Esta definición corresponde a

Gobierno parlamentario monárquico: Sistema que ocurre en los Estados donde un Rey, Emperador o Príncipe es el Jefe de Estado.

heres english just in case - The Parliamentary States: They are those in which the Executive Power is two-headed, that is, exercised by a Head of Government who performs the essential functions of command; and by a Head of State, appointed by a parliamentary majority. In turn, Parliament is elected by the people.

hope i heleped

Explanation:

im pretty sure it has something to do with the end of ww1

d) the constitution rights of native americans and their right to self-government on reservations