Which group supported political machines ?

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 The correct answer is : Immigrants supported political machines because they provided jobs and services.

Explanation:  The main objective of the political machines during the Golden Age was to control the local government. The political machine is a political group led by a boss who has the support of supporters and companies that receive rewards for their efforts. The boss or the group of the machine must be able to get the number of votes necessary for their candidate on election day.

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.