A) Northern, Western, Eastern, and Mid-Western
B) Northern, Southern, Western, and Eastern
C) Northern, Western, Eastern, and Central
D) Northern, Western, Eastern, and Southern

A) Eastern Region
B) Mid-Western Region
C) Northern Region
D) Western Region

A) Mid-Western Region
B) Northern Region
C) Eastern Region
D) Eastern Region

A) Eastern Region
B) Northern Region
C) Mid-Western Region
D) Western Region

A) Eastern Region
B) Lagos Region
C) Mid-Western Region
D) Northern Region

A) Northern Region
B) Eastern Region
C) Mid-Western Region
D) Western Region

A) Southeast (The Eastern Region covered the southeastern part of Nigeria)
B) Northeast
C) Southeast

A) Northern Region
B) Mid-Western Region
C) Eastern Region
D) Western Region

A) Igbo
B) Edo
C) Hausa-Fulani
D) Yoruba

A) Northern Region
B) Mid-Western Region
C) Eastern Region
D) Western Region