Concept:ECOWAS seeks to promote economic integration and free trade among West African member states.
Explanation:ECOWAS was established to remove trade barriers between West African countries.
It encourages member nations to exchange goods and services freely within the region.
By reducing tariffs and easing border restrictions, ECOWAS helps local manufacturers sell their products more widely.
This makes goods more available and affordable for consumers across the region.
Therefore, boosting intra-regional trade is one of its primary aims.
Answer:D. promote trade within the region