Final answer:
It is false that the success of Mass Production in the US depended solely upon producers' control of the marketplace; other crucial factors also played significant roles.
Step-by-step explanation:
The success of mass production in the United States indeed depended upon producers' control of the marketplace. However, it is false to say that this control was the only factor. Mass production also relied on a variety of factors such as technological innovations, availability of labor and raw materials, and the expansion of transport networks. While control over the marketplace was an aspect of successful mass production, it was not the sole determinant.
The market revolution in the early nineteenth century significantly changed economic and social dynamics. Traditional economic structures gave way to a market-based economy where supply, demand, and price became paramount. This transition involved a shift from home production to factory production, which subsequently increased the availability of manufactured goods.