Yep thats the right answer
Social Darwinism became the belief system,
<span>It was held by the supporters of big business. Under this belief system, wealth was a measure of one’s value. If you became wealthy, you earned it; if you were poor, you deserved to be poor. </span>
The correct answer is letter D
They failed because nobody cared about the railroad. The railroad had to be a government project with leases to companies but the government was too much involved in the slavery issue that it didn't have time to deal with railroads. That's why railroads boomed after the civil war ended.
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As the electorate expanded, the political parties evolved to mobilize the growing mass of voters as the means of political control. Political parties became institutionalized to accomplish this essential task.
Brainliest pleeeeeeeeeeeeeeeeeeeeez
