Which of the following is a branch of the government?

The correct answer is Congress, which is one of the three branches of the United States government. The government is divided into three branches to ensure a system of checks and balances, and Congress specifically represents the legislative branch. This branch is responsible for making laws, composed of two houses: the Senate and the House of Representatives.

In contrast, while the Supreme Court is also a branch of government, it pertains to the judicial branch, not the legislative. The Federal Reserve is the central banking system of the U.S. and doesn't constitute a branch of government. Judicial review is a process by which courts interpret the law and assess the constitutionality of statutes but is not itself a branch of government. Understanding these distinctions is essential for grasping how the government operates and the specific roles played by each branch.