The city of Baghdad was economically important in part because it A. sent sailing ships called dhows to trade with Europe.
B. traded with Africa along the famous Silk Road.
C. was linked to China and other lands by camel caravan routes.
D. produced all the trade goods it needed for itself.

D. produced all the trade goods it needed for itself.

Explanation:

aristocracy, timocracy, oligarchy, democracy, theocracy and tyranny

explanation:

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