Concept:The Economic Community of West African States (ECOWAS) was founded through the Treaty of Lagos in 1975, initiated by a Nigerian military Head of State.
Explanation:ECOWAS was established to promote economic integration and cooperation among West African states.
The idea was strongly pushed by Nigeria and Togo.
The treaty that created ECOWAS was signed in Lagos on 28 May 1975.
At that time, Nigeria's Head of State was General Yakubu Gowon.
This achievement is often credited to his administration.
Therefore, Nigeria's leadership in forming ECOWAS happened during Gowon's regime, not during the regimes of Obasanjo, Muritala Muhammad, or Babangida.
Answer:B. Yakubu Gowon