Supreme Court justices ruled that the Healthcare Reform Act was constitutional. They were exercising their power which is called judicial review. Thus the correct answer is B.
<h3>What is a constitution?</h3>
A constitution is referred to as a fundamental book containing rules, regulations, laws, and principles of any country which abide by every individual living in the country.
Judicial review is the idea that the decisions of the executive and legislative departments of government are subject to scrutiny and possible disapproval by the judiciary, which is important to the US form of government.
If state or national laws or activities are found to be in violation of the Constitution, judicial activism can be used to declare them invalid. It also empowers courts to find an executive or legislative action unlawful.
Therefore, the option D Judicial review is the correct answer.
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b.) powers that allow the each branch to curb the others
