What is the primary function of the judiciary described in Article III of the U.S. Constitution?

• A. Interpret laws and resolve cases and controversies involving federal law and the Constitution
• B. Enforce laws across all branches
• C. Create new statutes for the nation
• D. Advise the President on policy

Answer: (A)

The main idea is that Article III assigns the courts the job of interpreting laws and applying them to real disputes. The judiciary’s role is to read statutes and constitutional provisions and decide how they govern the facts of a case, resolving questions that arise under federal law or the Constitution. This interpretive and remedial function—telling us what the law means and how it should be applied in concrete controversies—defines what courts do. The other tasks listed belong to other branches or aren’t described as the judiciary’s constitutional function: enforcing laws is the executive’s job, creating new statutes is Congress’s, and advising the President on policy is outside the judicial mandate.