Answer :
The correct answers are options 1) "The Abbasids expanded into new territories both north-south and east-west" and 5) "As new goods flowed into the Abbasid Empire, the economic prosperity of the local inhabitants increased". Medieval Islamic trade networks were of great relevance as Islamic leaders used taxes from wealthy merchants to build and maintain public works. The Abbasid Empire, which is considered the Golden Age of Islamic history, benefited from these trade networks. The main benefits were the expansion into new territories and the increase in the economic prosperity of the local inhabitants.