Final answer:
Supreme Court decisions are best described as final and flexible. So, the correct answer is D) Flexible.
Step-by-step explanation:
Supreme Court decisions in the United States are best described as:
Final: Supreme Court decisions are the ultimate and highest authority. Once the Court makes a decision, it is binding and cannot be appealed.
Flexible: While Supreme Court decisions are final, they can be interpreted and applied in different ways over time. The Court has the power to reinterpret its previous decisions in light of changing circumstances.
Therefore, the correct answer is D) Flexible.