What is the legislative body of the federal government called?

The legislative body of the federal government is referred to as Congress. This term encompasses both chambers of the U.S. Legislature: the Senate and the House of Representatives. Congress is responsible for creating laws, regulating commerce, and overseeing federal agencies, among other duties.

The Senate consists of 100 members, two from each state, while the House of Representatives is made up of 435 members whose representation is based on each state's population. Together, these two bodies work collaboratively to legislate, but they are collectively known as Congress. This terminology indicates the complete institution rather than just a single chamber or component, emphasizing its broader role within the federal government.

In contrast, other choices specify parts of Congress or a different branch of government, which do not fully encompass the entirety of the legislative process within the federal system.