The answer is D.
Tang Dynasty believed that creating a body of career official with no territorial or power base would prevent destabilizing consequences. Thus, the dynasty selected the scholar-officials through civil service examinations.
The best option from the list would be that "<span>He established the custom of using the heads of various departments for his personal advisers," since this was the precedent set for the "cabinet" in the executive branch. </span>
What are the answer choices?
US: 40 degrees north
China: 30 degrees north
