In feudalism a knight must a. protect serfs from unscrupulous vassals b. pay fiefs to a vassal c. be ready to defend his vassal's territory as part of a "standing army" d. be responsible to his lord for the agricultural output of the serfs under his control

all of them lol cause theres no map

muslims have taken his goods and products to different parts of asia an indonesia. sometimes just traveled and trade, but in other occasions, stayed in the place and made a living.

trade was the key for muslims economies to prosper. their commerce routes reached far places like malaysia and java in the 11th century.

another important factor for prosperity was that muslim states served as the middle point for european traders.

they used to travel by land but sailing the seas -the indian ocean- really increase the exportation of products.