Concept:The United States Constitution creates a bicameral federal legislature known as Congress.
Explanation:The legislative branch is the arm of government responsible for making laws.
In the United States, this law-making power is exercised at the federal level by Congress.
Article I, Section 1 of the U.S. Constitution vests all legislative powers in Congress.
Congress is made up of two chambers: the Senate and the House of Representatives.
The Senate is the upper house, while the House of Representatives is the lower house.
A Parliament is the legislative body used in the British Westminster system, not in the U.S.
A National Assembly is common in many presidential systems but is not the U.S. federal legislature.
Since the U.S. Constitution specifically names Congress as the federal law-making body, it is the correct option.
Answer:B. Congress