How many justices serve on the Supreme Court?

The Supreme Court of the United States is composed of nine justices, which includes one Chief Justice and eight Associate Justices. This number has been established since 1869 and serves to ensure a diverse range of opinions and a balanced decision-making process within the court. The structure of nine justices allows for majority opinions, which are crucial in providing a definitive ruling on cases brought before the court.

The other answer choices reflect incorrect configurations that do not align with the established structure of the Supreme Court. For example, having seven, eleven, or five justices would alter the dynamics of how cases are deliberated and decided, potentially leading to more tie votes, which would complicate legal interpretations and rulings. Thus, nine justices serve to maintain the effectiveness and authority of the highest court in the United States.