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

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

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

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

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

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

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

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

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

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