Which of the following is a branch of the government?

Congress is a branch of the federal government in the United States, specifically the legislative branch. This branch is responsible for making laws and is composed of two houses: the Senate and the House of Representatives. The role of Congress is critical in the functioning of the government as it also holds the power to levy taxes, regulate commerce, and declare war, among other responsibilities.

The other choices represent different forms of local or state governance rather than branches of the federal government. The School Board, State Legislature, and City Council are important governing bodies but operate at different levels. The School Board manages local education matters, the State Legislature is the legislative authority at the state level but does not pertain directly to the federal government, and the City Council governs local city matters. Therefore, the only correct option representing a branch of government at the federal level is Congress.