Concept:The 1957 London Constitutional Conference was a key step toward arranging Nigeria’s independence.
Explanation:The conference discussed the timetable for granting independence to each region.
It also considered enlarging the House of Representatives.
Another major issue was creating the office of the Prime Minister for Nigeria.
These measures were aimed at building a stable system of self-governance.
They were also meant to support broad and inclusive national development.
The conference did not mainly focus on regional legislature participation, federalism growth, or simply collecting public views.
Answer:D. preparing ground works for the self-governance and inclusive development of Nigeria.