There are more people so they need more space for these people
Answer:
abolitionists.
Explanation: The group in 19th century America that would likely be the most receptive audience for "What to the Slave is the Fourth of July?" would be abolitionists.
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Answer:
D. Spain lost the colony of New Spain (Mexico)
Laws would vary from one State to the other, which would make it difficult to adhere to if you're not from that State. Also, politics would play into effect. I'd like to use the American Civil War as an example; some states were for Slavery, meanwhile others sided on the abolishment side. That could come into play here, and that could be extremely dangerous.