Which of the following statements describes a difference between the political systems of Australia and New Zealand?

A.
Australia is a constitutional monarchy; New Zealand is a democracy.

B.
Australia's entire territory is ruled directly by the central government; New Zealand is divided into states.

C.
In Australia, citizens are required by law to vote in elections; in New Zealand, voting is not required.

D.
Australia does not have a written constitution; New Zealand has a written constitution.

D. Australia does not have a written constitution; New Zealand has a written constitution.

Which of the following do Australia and New Zealand have in common with the United States?

A.
The constitution of each country includes a bill of rights.

B.
The governments of all three countries have a federal structure.

C.
All three countries are presidential republics.

D.
All three countries were once British colonies.

D. Australia does not have a written constitution; New Zealand has a written constitution.

To determine which of the statements describes a difference between the political systems of Australia and New Zealand, we need to analyze each statement individually and compare it to the political systems of both countries.

A. Australia is a constitutional monarchy; New Zealand is a democracy.
This statement is incorrect. Both Australia and New Zealand are parliamentary democracies, meaning they have elected representatives and a form of government where the executive branch is accountable to the parliament.

B. Australia's entire territory is ruled directly by the central government; New Zealand is divided into states.
This statement is also incorrect. Neither Australia nor New Zealand have states. Australia is divided into six states and two territories, each with its own government, while New Zealand is divided into regions.

C. In Australia, citizens are required by law to vote in elections; in New Zealand, voting is not required.
This statement is true. In Australia, voting is compulsory, meaning that all eligible citizens are required by law to vote in federal elections. This is not the case in New Zealand, where voting is voluntary.

D. Australia does not have a written constitution; New Zealand has a written constitution.
This statement is incorrect. Both Australia and New Zealand have written constitutions. Australia's constitution is a combination of written and unwritten sources, while New Zealand has a single written document known as the Constitution Act 1986.

Based on this analysis, we can conclude that statement C, which states that in Australia voting is required by law while in New Zealand it is not, describes a difference between the political systems of the two countries.