Which of the following represents the two parts of the legislative branch?

The legislative branch of the United States government, as established by the Constitution, is bicameral, meaning it consists of two separate chambers. These chambers are the Senate and the House of Representatives. Each plays a distinct role in the law-making process: the House of Representatives is responsible for initiating revenue bills and representing the population, while the Senate is tasked with providing equal representation for states and has unique powers, such as ratifying treaties and confirming presidential appointments. This structure ensures a system of checks and balances within the legislative process, allowing for varied representation and a more robust deliberation of laws.

The other options represent different branches or components of government that do not pertain directly to the legislative branch.