Concept:ECOWAS is a regional integration body. For easy transaction, member states need to use a single currency.
Explanation:Each ECOWAS member country still has its own national currency.
This makes trade and payment across borders difficult.
Importers and exporters have to deal with different exchange rates and extra bank charges.
The bloc planned to introduce a common currency called the “Eco”, but it has not been fully adopted.
This monetary difference slows down economic activities in the region.
Hence, the major challenge facing ECOWAS is the lack of a common currency.
Answer:D. Common currency.