During the exchange of goods, which regions were connected by the Indian Ocean, Trans-Saharan Africa, and Silk Road?
a) Indian Ocean: Asia and Africa; Trans-Saharan Africa: Africa; Silk Road: Asia and Europe
b) Indian Ocean: Europe and Africa; Trans-Saharan Africa: Asia; Silk Road: Asia and Africa
c) Indian Ocean: Asia and Europe; Trans-Saharan Africa: Africa; Silk Road: Asia and Europe
d) Indian Ocean: Europe and Asia; Trans-Saharan Africa: Africa; Silk Road: Asia and Europe
