Correct Option: A. Macpherson Constitution Detailed Explanation: The Ibadan Conference of 1950 was a significant event in Nigeria's political history, primarily focused on discussing the provisions of the Macpherson Constitution. This constitution was introduced in 1951 and was a response to the growing demand for greater political representation and self-governance in Nigeria.

1. Context of the Conference:
2. The Ibadan Conference was convened to address the political structure and governance of Nigeria, particularly in light of the increasing nationalist movements and the need for a more representative government.
3. The conference brought together various stakeholders, including political leaders, traditional rulers, and representatives from different regions of Nigeria.
4. The Macpherson Constitution:
5. Named after Sir John Macpherson, the then Governor of Nigeria, this constitution aimed to provide a more federal structure and increase the level of political participation among Nigerians.
6. It introduced a bicameral legislature, which included a House of Representatives and a Senate, and allowed for a limited form of self-government.
7. The constitution also aimed to address regional disparities by giving more power to regional governments, which was a significant shift from previous constitutions.
8. Significance of the Conference:
9. The Ibadan Conference was crucial in shaping the discussions around the Macpherson Constitution, as it allowed for a platform where various ethnic groups and political factions could voice their opinions and concerns.
10. The outcomes of the conference influenced the final provisions of the Macpherson Constitution, particularly in terms of regional representation and governance.

Why the Other Options are Incorrect:

• B. Clifford Constitution:
• The Clifford Constitution was introduced in 1922 and was the first constitution to provide for a limited form of elected representation in Nigeria. However, it was not the focus of the Ibadan Conference, which occurred much later in 1950.
• C. Lyttelton Constitution:
• The Lyttelton Constitution was enacted in 1954 and was a further development of the Macpherson Constitution. It aimed to create a more federal structure and was not the subject of discussion at the Ibadan Conference.
• D. Richards Constitution:
• The Richards Constitution was introduced in 1946 and was the first to establish a central legislative council for Nigeria. While it laid the groundwork for future constitutional developments, it was not the focus of the Ibadan Conference, which specifically addressed the Macpherson Constitution.

Revision Summary:

• The Ibadan Conference of 1950 was convened to discuss the Macpherson Constitution.
• The Macpherson Constitution aimed to increase political representation and introduced a bicameral legislature.
• The conference allowed various stakeholders to voice their opinions, influencing the final provisions of the constitution.
• Other options (Clifford, Lyttelton, Richards) were either earlier or later constitutions and not relevant to the discussions at the Ibadan Conference.