Why did rising housing prices pose a challenge to the U. S. economy during the early 2000s

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Which of the following scenarios illustrates the cultural impact of expanded regional trade for postclassical civilizations? o a. the byzantine empire rises in place of the roman empire. o b. an islamic scholar attends a university in his hometown. o c. internal disputes weaken a large african empire. o d. an arabian sultan wears a robe made from chinese silk.

Brainliestttme : ) -what role has technology played in globalization?