-In the United States, Monopoly Regulation Began Primarily Because

-In the United States, monopoly regulation began primarily because:

A) there were no natural monopolies in the real world.
B) the government wanted to promote other forms of business practices.
C) monopolies did not typically follow occupational and safety rules.
D) monopolies tended to restrict output and raise prices.
E) most economists believed that the majority of industries were following the purely competitive model.