The treaty establishing the Economic Community of West African States (ECOWAS) was

• A.concluded in Lome (Togo) in December, 1976 after hard and extensive negotiations
• B.designed as the main pillar on which an eventual African common market would be built
• C.the brain-child of Togo and Ghana
• D.signed in Lagos in May 1975 to promote trade and other economic co-operation in the region as a whole
• E.to immediately eliminate tariffs and other barriers to trade among members