The sentence that best summarizes the central idea of the song is "the men begging for money on the street helped build and protect our country..." (option B)
<h3>What is the song about?</h3>
The song "Brother, can you spare a dime" is about a war veteran who is now waiting in line in order to get some food after the Great Depression hit. Although he is a hero, he is now begging for money.
The song's central idea is that the men who fought to protect the country believed they were doing so in order to give everyone a glorious and prosperous future. However, reality is quite different from what they fought for, and they certainly deserve better.
With the information above in mind, we can select option B as the correct answer.
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