Which two bodies make up the United States Congress?

The United States Congress is comprised of two distinct chambers: the Senate and the House of Representatives. This bicameral structure was established by the U.S. Constitution and serves to ensure a system of checks and balances within the legislative branch of government.

The Senate includes two representatives from each state, serving six-year terms, which helps to balance representation between states regardless of size. Meanwhile, the House of Representatives is made up of members who are elected based on their state's population, serving two-year terms, which allows for more immediate representation of the public's current wishes and needs.

Together, these two bodies are responsible for crafting legislation, approving budgets, and providing oversight of the executive branch, among other duties, thus playing a critical role in the functioning of American democracy. The other choices presented do not accurately reflect the structure of the United States legislative system, as they reference entities that are either part of a different system (like the House of Lords, which is part of the UK Parliament) or belong to different branches of government (like the Supreme Court or the Executive Branch).