Which is the BEST definition of a parliamentary form of government?

A.
a system of government in which executive power is held by a member of the legislature

B.
a system of government in which the chief executive is constitutionally independent of the legislature

C.
a system of government in which power is held by a small number of people who make government decisions

D.
a system of government in which power is divided between one central government and several regional authorities

The BEST definition of a parliamentary form of government is "a system of government in which executive power is held by a member of the legislature."

The history of the Parliamentary System can be traced back to the United Kingdom.

In a Parliamentary system, the Prime Minister or Chief Executive is selected or elected by the members of the Parliament. The Prime Minister is also a member of the Parliament, including other officials that would make up the executives.

Also, the Prime Miniter has to appoint from the Parliament to make up his executives or cabinet.

Hence, in this case, the correct answer is option A"a system of government in which executive power is held by a member of the legislature"

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