Which of the following characterized the trans-Saharan trade by 1250 C. E.?

Muslim merchants dominated the trade

Explanation:

The trans-Saharan trade in the 1250 C.E. controlled by the Muslim merchants. Trans-Sahara trade is one of the oldest trading networks in Africa. Mali rises as gold became the centre of the trans-Saharan trade. The Trans-Sahara trade saw the rise of empires like Songhay, Mali, and Bono-Mansu. Muslim traders from Arabia brought luxury goods in Africa. Many merchants from Arabia stayed in the city-states of East Africa, which led to a new and different ethnic group known as the Swahili, which prospered and became economic power by the 1400s.

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

it was the "4. potsdam" conference that demanded the unconditional surrender of japan, since it was clear that the japanese would continue to find until the very last man otherwise.