1 The intensification of commerce and warmer temperatures along the Silk Road between 800 and 1300 contributed to the urbanization of Badhdad in the Islamic Caliphate and, Haungzhou
in the Sui, Tang, Song Dynasties.

i would say d out of common sense

power       the answer is a

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your answer would be (b)

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.