PLEAAASE HELP will up vote 30 POINTS
The map below shows kingdoms, cities, and trade routes of Africa in the period 700–1600 CE. Use the map to answer the following question:
Which of the following statements is supported by the map?
A:There was a lower volume of trade in northern and western Africa, compared to the rest of the continent.
B:At Songhai, gold was the major export, while at Mogadishu slaves and ivory were.
C: Trade routes were concentrated in the northern and western kingdoms, but trading occurred throughout the continent.
D:Trade from Mobasawa was conducted by land, while trade in Kongo was conducted solely by boat.
