Why do governments regulate natural monopolies?
to allow additional producers
to enter a market to prevent a monopoly from abusing its customers
to lower the costs of production or distribution
to provide companies with greater access to raw materials

correct b

To enter a market to prevent a monopoly from abusing its customers

Explanation:

The government performs actions of economic regulation that affect the public (consumer) interests by controlling natural monopolies. A monopoly is when production is done by one or just a few companies.  Some producers would use regulations to fix the price, block entry, and increase profits, so they must be regulated to avoid abuses.

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.