The Senate was Rome's Council of Elders, approximately 21 percent of worldwide countries have unicameral legislatures, and the Supreme Court of the U.S. includes one Chief Justice and eight Associate Justices. Hence the correct option is C
The Council of Elders in ancient Rome was part of the Senate, which was a principal branch of government. This legislative body was composed of Roman aristocrats who served for life and played a crucial role in the political, religious, and social affairs of the state.
Worldwide, about 25 percent of countries have a unicameral legislature, which is a single-chamber parliamentary system.The Supreme Court of the United States consists of one chief justice and eight associate justices, totaling nine members who serve on the highest court in the federal judiciary.
Hence the correct option is C