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Answer 'C' = The Executive Office of the President. Consists of advisers who do not need to be approved by the U.S. Senate, although there are some staff exceptions, and provide support for the president, and respond to him.
Answer:
The Song dynasty was the second great "medieval" period of China. But unlike the Tang, it coexisted uneasily with powerful rivals to the north. These rivals were the Khitan Tartars of Manchuria and Mongolia, kept at bay only through costly bribes, and the Jurchen people of Central Asia, who were intent on conquering China but could not be influenced by payoffs. While the Song dynasty managed to recapture—and develop—much of the glory of the Tang, it did suffer a blow in 1127 when the Jurchen took the capital of Kaifeng, and sent the Song Chinese administration southward, to establish the Southern Song capital at Hangzhou, near modern Shanghai. Still the Northern Song (while it lasted) and the Southern Song (from 1127 until 1279) achieved incredible feats of learning, science, art, and philosophy. To the Chinese, the Song was a period certainly as great as the Tang.
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Crossing the Atlantic Ocean could take weeks or months and there was no telephone during this time. hence, self government being important because the colonists often had to solve their own problems