One of the methods by which post-civil war business leaders increased their profits was a. increased competition. b. support for the idea of a centrally planned economy. c. funding research on new technologies. d. elimination of the tactic of vertical integration. e. elimination of as much competition as possible.

Option E. Elimination of as much competition as possible.

Explanation:

Following the American Civil War, big business and corporations started to flood the US market.

Ohio's Standard Oil Company was one of the most famous monopolies in US history, entirely dominating the oil market in the Eastern and middle sections of the country. By completely eradicating the competition, the company could have full control over prices, demand, labor wages and productions of the asset.

it is

a

asked for and recieved from the united states