What Was the Post-Civil War Marketplace Increasingly Becoming Over the Years

What was the post-Civil War marketplace increasingly becoming over the years 1860-1900?

A) essentially a replica of the European marketplace, as the United States acquired the capital to model goods and services after European businesses without enough left over to allow for ingenuity
B) a collaborative marketplace, as leaders of Big Business sought to increase competition because it would lead to a greater diversity of goods and services and better working environments
C) a transparent marketplace that strongly discouraged lobbying out of fear that, in response, the small pool of consumers would grow distrustful of corporations and only support small businesses
D) a truly national marketplace for the sale and distribution of goods and services, in large part thanks to the expansion of transportation systems and instantaneous communication networks
E) a constrained marketplace due to the loss of the cotton economy in the South and the resulting long-term blow to the North's main industries, including textiles and oil