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

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

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

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

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

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

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

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

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

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