What is the composition of the Supreme Court of the United States?

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 in place since 1869, and it is established by Congress. The composition ensures that there is a majority when decisions are made, allowing for a proper functioning of the court in reaching legal conclusions on complex cases across various areas of law.

In contrast to the other options, a court comprised of fewer judges would not reflect the historical standard set for the Supreme Court. Having seven, five, or three judges would be unusual and lacks the foundation necessary for a Supreme Court that can fulfill its role effectively in interpreting the Constitution and federal law.