Answer:
The best answer for the question: This law was passed by Congress in 1890 to prevent the formation of monopolies and any other contracts or agreements that resulted in a "restraint of trade", would be, D: Sherman Anti-Trust Act.
Explanation:
Between the late 1800´s and 1900´s, a burst of enormous business conglomerates began to appear and to curtail the free market and the atmosphere of free competition that had been a characteristic of the U.S economy until then. In response to the abuses performed by these conglomerates, and to stop the formation of monopolies, the U.S Congress passed in 1890 the first of a series of anti-trust laws, most prominent of all the Sherman Anti-Trust Act of 1890, to prevent this from happening any further and to curtail any business activities that might place a "restraint of trade."
