Political machines were likely to approve public work projects for companies that were qualified. were anti-union. promised their votes. promised good discounts.

Approval of the public work projects by the political machines for companies was done because they promised their votes. Hence, Option C is correct.

What are political machines?

When there is a politics that are for the representative of the democracies, there is the use of political machines. It is the politicla machines in which a party organization also recruits its members, and this recruitment is done with the help of tangible incentives like money and political jobs.

All these things are characterized because of leadership control over member activity and that is of a high degree. When there was the time of the 20th century, it is the collections that have been done by the self-serving political machines, that helps many of the US cities in smooth working.

Thus, Option C is correct.

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