D. British Government
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So before the civil war Abraham Lincoln focused more about preserving then union than freeing the slaves. Abraham Lincoln did not want to expand slavery but did not want to end it immediately either. Only during the civil war did Abraham Lincoln say he would free the slaves to motivate his troops and also find a better cause in winning the war and getting support.
The purchase was indeed a good idea because, our country wouldn't have been this big if we didn't buy it. Plus That was a lot of land for pretty cheap price.
Answer:
In United States history, the Gilded Age was an era that occurred during the late 19th century, from the 1870s to about 1900
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