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

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

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

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

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

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

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

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