Correct Option: A. the National Assembly Detailed Explanation:

1. Understanding the Structure of Nigeria's Legislature:
2. Nigeria operates a bicameral legislature, which means it has two separate chambers that work together to create laws and represent the people. This structure is designed to ensure a system of checks and balances within the government.
3. The National Assembly:
4. The National Assembly is the official name of Nigeria's legislative body. It consists of two chambers:
   • The Senate: This is the upper chamber, which is made up of 109 senators. Each of Nigeria's 36 states is represented by three senators, while the Federal Capital Territory (Abuja) has one senator.
   • The House of Representatives: This is the lower chamber, which has 360 members. The number of representatives from each state is based on its population.
5. Role of the National Assembly:
6. The National Assembly is responsible for making laws, approving budgets, and representing the interests of the citizens. It also has the power to conduct investigations and oversee the executive branch of government.
7. Why Option A is Correct:
8. The term "National Assembly" specifically refers to the entire legislative body of Nigeria, which includes both the Senate and the House of Representatives. Therefore, it is the most accurate answer to the question regarding the two chambers of elected national representatives.

Analysis of Other Options:

• Option B: House of Assembly:
• This term typically refers to the legislative bodies at the state level in Nigeria, not the national level. Each state has its own House of Assembly, which is responsible for state legislation. Therefore, this option is incorrect as it does not pertain to the national level.
• Option C: the Senate:
• While the Senate is indeed one of the two chambers of the National Assembly, it does not encompass the entire legislative body. It is only part of the National Assembly. Thus, this option is incomplete and therefore incorrect.
• Option D: the parliament:
• The term "parliament" is a general term used in many countries to describe their legislative bodies. In Nigeria, the specific term used is "National Assembly." While it may be understood in a broader context, it does not accurately reflect the specific structure of Nigeria's legislature. Hence, this option is also incorrect.

Summary of Key Points:

• The correct answer is A. the National Assembly, which includes both the Senate and the House of Representatives.
• The National Assembly is responsible for law-making and representing the citizens at the national level.
• The House of Assembly refers to state-level legislatures, making it incorrect for this question.
• The Senate is only one part of the National Assembly, and parliament is a general term not specific to Nigeria's legislative structure.

This thorough understanding of Nigeria's legislative framework will help you in your studies and any related examinations.