What governing body was established with a bicameral structure under the new Constitution?

The choice highlighting the Senate and House of Representatives represents the bicameral structure established by the new Constitution. This system was created to allow for a more balanced representation of the population and the states, addressing concerns about how power should be allocated in the legislative process. The framers of the Constitution sought to balance the interests of larger states, which would benefit from representation based on population in the House of Representatives, with those of smaller states, which would have equal representation in the Senate. This dual-chamber system was designed to prevent any single entity from wielding excessive power and to ensure that both the states and the citizens had a voice in the legislative process, thus laying a foundation for a more equitable and effective government.