What was the Edo Period? O A new era of constant warfare
A new era of unification and peace that led to nearly 200 years of increasing Japanese population, wealth, knowledge, and infrastructure
O A new era of trade with the Muslims
O A new era of converting to a western religion
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Correct answer is A new era of unification and peace that led to nearly 200 years of increasing Japanese population, wealth, knowledge, and infrastructure .

Explanation:

Second option is correct because this was one of the most prosperous period of Japanese history, also known as Tokugawa period. It was a period of isolation, when Japan developed.

All other options are not correct, because Japanese weren't allowing influence from the outside.

some american cities felt workers were being oppressed by business monopolies