What was one advantage of the division of labor during the growth of industry?

Workers were able to specialize and perform specific tasks.

Explanation:

Division of labor, also known as the specialization of labor, refers to the process of dividing extensive tasks into shorter tasks, having different workers complete them. The division of labor was particularly successful in large-scale business like car production because it enables workers to develop specific skills for a precise assignment. It allows improving productivity, therefore reducing costs.

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the answer for 3 is b and the answer for 4 is d