A. Yoruba, by the Oyomesi
B. Igbo, by consensus
C. Hausa/Fulani, by the Emir
D. Igbo, by the Okpara

Correct Answer: Option B

B. Igbo, by consensus

Explanation

The Igbo precolonial was seen predominantly as acephalous and decisions were made based on popular consultations and acceptability.

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