Which statement best describes a difference between presidential and
parliamentary democracies?

The statement best describes a difference between presidential and parliamentary democracy is option 3. In a parliamentary democracy, the head of state is a member of the legislature. In a presidential democracy, the head of state is directly elected by citizens.
In a parliamentary democracy, the legislature and the executive branch are truly under the control of a representative body that is created through free and fair elections in which the majority of a country's citizens are expected to vote.
In this all the member of legislature assembly elect the head of the state
A presidential democracy is a form of government in which the executive branch, often known as the judicial branch, exists but is distinct from the legislative branch.
In this the head of the state is directly elected by the citizens
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