The correct answers are A and D.
A- Scholars advised the emperors how to govern:
The Han dynasty was noted for the establishment of a group of advisors to the emperor, made up of scholars. One of the most well-known counselors of the time was Dong Zhongshu.
D- Chinese literature spread to western Asia and Europe:
The intellectual, artistic and literary achievements revived and flourished during the Han Dynasty. The Han period produced China's most famous historian, Sima Qian (145 BC - 87 BC), whose historical memoirs were the most outstanding work of the period, becoming known later in Europe, that provided a detailed chronicle from the times of the legendary Xia dynasty to those of Emperor Wu (141 BC - 87 BC). Technological advances also marked this period. One of the great Chinese inventions, paper, dates from the Han era.