Correct Option: A. Authority of Heads of State and Government Detailed Explanation:

1. Understanding ECOWAS: The Economic Community of West African States (ECOWAS) is a regional political and economic union of fifteen countries located in West Africa. It was established to promote economic integration and cooperation among its member states, as well as to maintain peace and stability in the region.
2. Executive Functions in ECOWAS: The executive functions of ECOWAS involve the implementation of policies, decisions, and programs that have been agreed upon by the member states. This includes areas such as trade, security, and development initiatives.
3. Authority of Heads of State and Government: The highest decision-making body in ECOWAS is the Authority of Heads of State and Government. This body is composed of the heads of state or government of each member country. They meet regularly to discuss and make decisions on critical issues affecting the region, including the overall direction of ECOWAS and its executive functions.
4. Why Option A is Correct: The Authority of Heads of State and Government has the ultimate power to exercise control over the executive functions of ECOWAS. This includes setting the agenda for the organization, approving policies, and ensuring that the executive arm of ECOWAS operates in alignment with the collective interests of the member states. Their decisions are binding and have a significant impact on the functioning of ECOWAS.

Analysis of Other Options:

• Option B: Secretary-General: The Secretary-General of ECOWAS is responsible for the day-to-day administration and management of the organization. While the Secretary-General plays a crucial role in implementing the decisions made by the Authority of Heads of State and Government, they do not have the overarching power to control executive functions. Their role is more about execution rather than decision-making.
• Option C: Council of Ministers: The Council of Ministers is composed of ministers from each member state, typically responsible for specific areas such as foreign affairs, finance, and trade. While they play a significant role in advising the Authority and preparing policies, they do not have the final authority to control executive functions. Their decisions are subject to approval by the Authority of Heads of State and Government.
• Option D: Technical and Special Commissions: These commissions are established to focus on specific areas of ECOWAS's work, such as agriculture, health, or infrastructure. They provide technical expertise and recommendations but do not have the power to control executive functions. Their role is advisory and supportive, rather than authoritative.

Summary of Key Points:

• The Authority of Heads of State and Government is the highest decision-making body in ECOWAS, responsible for overall control of executive functions.
• The Secretary-General manages day-to-day operations but lacks decision-making authority.
• The Council of Ministers advises and prepares policies but requires approval from the Authority.
• Technical and Special Commissions provide expertise and recommendations but do not control executive functions.

This understanding of the structure and functions of ECOWAS is crucial for grasping how regional governance operates in West Africa.