By Forming Trusts in the Late 1880s,U

By forming trusts in the late 1880s,U.S.manufacturers allegedly _____

A) became highly profitable, which allowed them to expand.
B) developed economies of scale that allowed larger firms to prosper.
C) took advantage of the rapid growth of the railroads, which allowed firms to reach a wider market.
D) discovered technological breakthroughs, which increased capital use and optimal firm size.
E) pursued anticompetitive practices to develop and maintain a monopoly advantage.