The correct answer is letter A) They elect members of the Parliament.
Argumentation:
Australia's Government rules by a federal parliamentary constitutional monarchy, which exercises its authority through a Constitution.
According to the constitutional structure, the Queen designates a General Governer for him to represent her (executive branch), and the General Governor appoints a Prime Minister (legislative branch) to represent the Parliament Representatives and Senate, and then there are the federal courts (judicial branch).
The Federal Parliament of Australia has two chambers: the Senate and the Representatives, which both are elected by the Australian citizens at federal elections.
If you are saying not on earth, are you talking about other planets or can it be stars because stars are extremely hot with white being the hottest and red being the coolest.