ANSWER: 1 and 3
Explanation:
- The Economic Community of West African States (ECOWAS) is a regional group of fifteen West African countries.
- It was founded in 1975, with the signing of the Treaty of Lagos.
- It's aim is to promote economic integration across the region.
Member countries:
Benin, Côte d'Ivoire, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Niger, Nigeria, Senegal, Sierra Leone, Togo, Burkina Faso, Cape Verde.
