Public policies toward monopoly in the United States often consist of:

A) laws outlawing all of them.
B) the regulation of natural monopolies.
C) government takeover if monopoly profit exceeds a certain level.
D) forcing monopoly industries to become perfectly competitive.

The regulation of natural monopolies is the most common policy toward monopoly in the US. This means that these monopolies are allowed to exist, but they are subject to government oversight and regulation to ensure that they do not abuse their market power and harm consumers. Outlawing all monopolies or forcing them to become perfectly competitive would not be practical or effective, and government takeover of industries based solely on profit level would not be a sustainable or market-friendly solution.