Answer :
"B. Before the Industrial Revolution, labor was more generalized. After the Industrial Revolution, labor was specialized" is the best option, as many workers moved into factories.
The correct answer is B. Before the Industrial Revolution, labor was more generalized. After the Industrial Revolution, labor was specialized. This situation is called "division of labor", and was originated with the creation of industrial machineries during the Industrial Revolution.
The division of labor is the fragmentation or decomposition of a productive activity into more elementary tasks, as well as its distribution among different people, according to their physical strength, ability and knowledge. The division of labor intensified with the development of capitalism and the industrial revolution.