Which of these BEST describes the significance of the Emancipation Proclamation?

The President abolished slavery in the southern states. It allowed slavery to remain unaltered in states who already used slave labor. It immediately freed the slaves throughout the country.
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The transcontinental railroad provided a means of fast transportation. it cut a 6 month trip into 6 days, created jobs for many people and encouraged immigration. the homestead act played a huge role in western expansion; it allowed settlers to begin a fresh start, and gave them land in exchange for their residence for up to five years and a small fee.