Final answer:
The market revolution indeed resulted in numerous social and economic changes in the United States, leading to shifts in production, the growth of urban areas, and changes in societal roles. Option a.
Step-by-step explanation:
The statement that the market revolution brought many social and economic changes to the United States is true(a). The market revolution, which occurred in the early 19th century, saw the transition from a subsistence economy to a more commercial and industrial one. This period of transformation led to significant developments in transportation and manufacturing, the growth of cities, and shifts in the social fabric of American life as people moved from rural to urban areas for work.
The revolution had a profound impact on the way goods were produced and marketed, leading to the rise of a market economy. It also facilitated the growth of financial institutions and saw changes in the role of women, as the domestic sphere became more separated from the world of commerce and industry.