What are the two parts of the United States Congress?

The two parts of the United States Congress are the Senate and the House of Representatives. This bicameral structure is fundamental to the legislative branch of the federal government as established by the U.S. Constitution. The Senate is composed of two representatives from each state, regardless of population, ensuring equal representation for every state. In contrast, the House of Representatives allocates seats based on the population of each state, leading to a representation that reflects the demographic distribution across the country. This dual structure allows for a balance of power and representation, making Congress more representative of the diverse views and interests of the American populace.

The other choices reflect either legislative bodies from different government systems or components of the government that do not belong to the legislative branch, underscoring the unique composition of Congress designed to embody both equal and proportional representation.