Concept:Military intervention in Nigeria was driven by political and economic failures, not by routine internal military affairs.
Explanation:Coups and military takeovers in Nigeria were often justified by corruption, ethnic bias, and economic underdevelopment.
Tribalism and nepotism created political instability, making military intervention seem necessary.
Mismanagement of public funds led to public dissatisfaction and loss of confidence in civilian governments.
Low economic development caused hardship, which also encouraged military takeovers.
However, regular promotion of military officers is a normal administrative process within the armed forces.
It is not a reason for seizing political power from an elected government.
Answer:B. regular promotion of military officers