I think it’s B. And if I’m wrong I’m truly sorry.
A division of labor occurred when people started producing a surplus of food because it was no longer necessary to use all of the labor force to subsist off of agricultural goods. Once a society or community can produce enough to survive and eat the labor force will begin to work in other industries creating a division of labor this could include making textiles, building homes, or any other number of economic activities.
Trade routes, hiring more people to spread goods, or more travel to show your items to people who did not yet have them.
