You are right, it is D. Tourism
Well during the 1850s <span>January 29, 1850 -there was a debate on slavery.
June 1, 1850 - The United States census of 1850 counts 23,191,876 population, a 35.9% increase from a decade before.
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Hello,
The answer to your question is <span>Ancient Greece.
Thanks,</span>
Yeah yeah that’s what you said it was just a little bit late