Final answer:
The advantage of mass production over craft production was the standardization of parts, which allowed for specialization and economies of scale, leading to a decreased cost per unit produced.
Step-by-step explanation:
The factor that gave an advantage to mass production over craft production is c the standardization of parts. This process allowed for less skilled workers to perform simple tasks repeatedly, which, in turn, led to the ability to employ workers at a lower cost compared to the skilled artisans required for craft production. Mass production benefited from the division and specialization of labor, which enabled the efficient assembly of standardized products and contributed to economies of scale. As productivity increased, the average cost per unit decreased, making mass production a more economically viable option than craft production.