The West African Clearing House(WACH)was established to
dredge the rivers in West Africa for easy navigation
expand the volume of traffic within member countries
cordinate the efforts to member states to tap their natural resources
promote the use of currencies of all members for inter regional trade
Correct answer is D
One of the major aims for the establishment of the West African Clearing House is to promote the use of members' currencies for sub-regional trade and other transactions, bringing about savings in the use of members' foreign reserves.