D. Saharan African trade was land based, whereas Indian Ocean trade relied on water routes.
Explanation:
Since antiquity, trade in Saharan Africa was traso by land and proposed the exchange of bienens for gold, silver or salt, however trade in the Indian Ocean was based on the sea routes that were developed over time. hand of different cultures and empires that ruled the area, and also European empires.
the responsibility of the DHS would be to identify when and where the attack occurred, and they also have the job to hunt down the person who planned and committed the attack
