Answer:
The answer is the parliamentary system.
Step-by-step explanation:
The parliamentary system refers to a system in which there is democratic governance of a state. In this system, the executive must have the ability to manage the parliament's confidence and in this way, get legitimacy in terms of democracy. In a parliament system, the person who is the head of state is usually different from the person who is the head of government.
Parliamentarianism is the most important form of government in Europe and the countries that have parliamentary democracies must be constitutional monarchies.