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

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

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

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

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

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

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

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

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

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