"They promised bills and laws in favor of immigrants in exchange for votes" is the one way among the following choices given in the question that <span>political machines, such as Tammany Hall, work with and for immigrants. The correct option among all the options that are given in the question is the second option. </span>
The way political machines, such as Tammany Hall, work with and for immigrants is by promising bills and laws in favor of immigrants in exchange for votes.
Political machine, in U.S. politics, is a party organization, headed by a single boss or small autocratic group, that counts on enough votes to maintain political and administrative control of a city, county, or state.
Tammany Hall was a New York City political organization founded in 1786. It was the Democratic Party political machine that played a significant role in controlling New York City and New York State politics and helping immigrants.
A complex sentence has multiple clauses. A clause has a subject and a verb. If you look back at the sentence, it does have multiple subjects and verbs, which means that it has multiple clauses, which means that it's a complex sentence.