Some products (such as roads, sewer systems, and railroads) are not adequately supplied by the marketplace acting alone. therefore, choices about building such things are made by a. governments. b. referendums. c. stockholders. d. private corporations.

Therefore, choices about building such things are made by "governments."

A government is the framework or gathering of individuals overseeing an organized network, frequently a state. A government resembles a group with the reason to administer the entire family or entire country with forces of money related, military and common laws. The fundamental motivation behind government is to look for the welfare of the regular people and to satisfy their requirement for the improvement of the country.  

Government is a means by which authoritative strategies are authorized, and an instrument for deciding approach.

A) Government

Explanation:

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