A should be the answer
Great poem by the way
<span>issued the Emancipation Manifesto, which released all serfs from indentured servitude. From this governance, serfs were allowed to buy property, marry without needing to seek consent, and own businesses. Serfs comprised approximately 38% of Russia's population.</span>
the united states solution i believe was the best because they were able to keep themselves up enough to last to world war 2 when they started to increase jobs because they had to build war machines like ships and tanks ect and since they had to do it fast they had to hire more people instead of some of the other countries how lessened the value of their money such as great Britain
I believe the answer is Observations.
Mayan civilizations made architectural designs to use time and days.
I hope this helps!