How did the silk road contribute to the development of classical civilizations such as china, persia, india, and arabia?
a) the silk road provided employment opportunities across many civilizations as it was being constructed.
b) the silk road promoted a cultural exchange between china and the west and spread chinese inventions.
c) the silk road to strengthen military protection for these ancient civilizations by creating a network of walls.
d) the silk road promoted travel for the masses among these civilizations. men, women, and children began exploring the world.