Concept:The dryness of the Horn of Africa is strongly linked to the local wind direction and the way the coastline is aligned.Explanation:The coast of the Horn of Africa runs roughly from the southwest to the northeast.The prevailing monsoon winds blow almost parallel to this shoreline rather than from the sea inland.As a result, these winds carry little moisture into the region, and most of the area remains dry.This makes the shape and direction of the shoreline the most important factor.Answer:B. The shape and direction of the shoreline