The correct answer is: "surplus of workers in the agricultural sector was transferred to the developing industrial sector".
Technological advances enhanced the productivity of the agricultural sector, which was able to generate greater output levels using less amount of capital and labor.
This excess of workers in the agricultural sector was absorbed by the developing industrial sector, which demand high quantities of unskilled workers. Factory production processes were divided in many small steps and each only involved simple tasks, so that, in order to perform such tasks efficiently, highly-qualified employees were not required. Workers were transferred from the agricultural to the industrial sector and from the countryside to urban areas.
