Aconstitutional monarchy is a system of government where there is a royal family and they don't have to follow the constitution of the country true or false

Your answer would be FALSE.

A constitutional monarchy is a form of government where the sovereign, or person with all the power, has limited power because of the laws or constitutions that are in place.

In your case, it is saying that the royal family doesn't have to follow the constitution, which highly neglects the definition of a constitutional monarchy. Since the royal family is part of a constitutional monarchy, they have a limited amount of power and still have to follow the constitutions and laws that are already placed, they have no right to not follow the law, they would need to follow the law like everyone else. If they were to disobey any laws and constitutions if their system is a constitutional monarchy, then there would be no point of the system.

If the Royal Family had a dictatorship system, then they would have all the power and could not follow the rules, but in this case, they don't.

c, they united with once