Correct Option: B. a Legislative Council for the whole of Nigeria Detailed Explanation: The Richards Constitution, enacted in 1946, was a significant development in Nigeria's constitutional history. It aimed to address the growing demands for political representation and self-governance among Nigerians. Here’s a step-by-step breakdown of why option B is the correct answer:

1. Historical Context: The Richards Constitution was introduced after World War II, during a time when there was increasing pressure for political reform in Nigeria. The British colonial government recognized the need to create a more inclusive political structure.
2. Legislative Council for the Whole of Nigeria: One of the most distinctive features of the Richards Constitution was the establishment of a Legislative Council that encompassed the entire territory of Nigeria. This was a significant shift from previous arrangements, which had been more localized. The new council aimed to unify the diverse regions of Nigeria under a single legislative body, allowing for broader representation of the various ethnic groups and regions.
3. Composition of the Council: The Legislative Council was composed of both elected and appointed members. This included representatives from the three major regions: Northern, Western, and Eastern Nigeria. The intention was to ensure that all regions had a voice in the legislative process, which was crucial for national unity.
4. Impact on Governance: The establishment of a Legislative Council for the whole of Nigeria marked a step towards self-governance. It allowed for discussions and decisions on national issues, rather than just regional matters. This was a foundational move towards Nigeria's eventual independence.

Why the Other Options are Wrong or Weaker:

• Option A: Unofficial members in the Legislative Council: While the Richards Constitution did include unofficial members (elected representatives), this was not its most distinctive feature. The inclusion of unofficial members was a continuation of previous practices rather than a new or unique aspect of the Richards Constitution.
• Option C: The establishment of local councils: Although local councils were part of the broader governance structure, the Richards Constitution did not primarily focus on their establishment. Local councils were more about local governance and administration, while the distinctive feature of the Richards Constitution was the creation of a unified Legislative Council for the entire country.
• Option D: Official members in the Legislative Council: The presence of official members (appointed representatives, often colonial officials) was not unique to the Richards Constitution. Previous constitutions also included official members. Therefore, this option does not capture the distinctive nature of the Richards Constitution.

Revision Summary:

• The Richards Constitution established a Legislative Council for the whole of Nigeria, unifying diverse regions under one legislative body.
• It aimed to provide broader representation and address demands for political reform in post-World War II Nigeria.
• The council included both elected and appointed members, but its most distinctive feature was its national scope.
• Other options either reflect continuations of previous practices or focus on aspects that were not unique to this constitution.