According to Ma Twan-lin, what guided Silk Road travelers through the Gobi Desert? What caused many travelers to get lost there?

Bandits were a common threat along the Silk Road. The bandits learned that not only silk was being traveled through those roads, but also gold, precious stones, glass, and other materials from China.

answer; ///i believe that the correct answer is (b)arches and domes; ///

mosques-hypostyle halls with lots of space.towers called minarets flanks the luck