It increased from the north and northeast to the south and southwest.
Answer: Option C.
<u>Explanation:</u>
The Tang administration or the Tang Empire was a majestic line of China that managed from 618 to 907, with an interregnum somewhere in the range of 690 and 705. It was gone before by the Sui line and followed by the Five Dynasties and Ten Kingdoms period in Chinese history.
The Song administration was a magnificent tradition of China that started in 960 and went on until 1279. The tradition was established by Emperor Taizu of Song following his usurpation of the royal position of the Later Zhou, finishing the Five Dynasties and Ten Kingdoms period.
