Where do the conditions of the market make unified control necessary or desirable to the public interest?

a.) oligopoly
b.) natural monopoly
c.) trust
d.) cartel

"Natural monopoly" is the one condition among the following choices where the market make unified control necessary or desirable to the public interest. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer has come to your help.

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