Answer:
The correct answer is a. It revived the civil service examination system of the Han
Step-by-step explanation:
The Tang Dynasty was an imperial dynasty of China that ruled the country between the years 618-907. The first two centuries of the Tang Dynasty are generally considered a high point in the history of China, marked by progress and political and social stability. The Tang Dynasty revived many ideas of previous dynasties, such as the Silk Road and civil service examinations. These examinations were first introduced by Emperor Wen of the Han Dynasty, who ruled between 180 and 157 BCE. In these examinations, candidates would be screened and selected according to their knowledge of Confucian thought. However, these tests were not standardized and passing them would not guarantee a civil service post. Centuries later, the Tang Dynasty would revive this idea and greatly expand it, and civil service examination became requirement for everybody who aspired to get a post in the imperial bureaucracy.