The correct answer is D) powerful emperors.
Powerful emperors helped to unified and protect ancient China.
China is a country that was forged by the many emperors that belonged to different dynasties. An emperor in China had a sacred place. He was a sacred figure because Chinese people considered him the son of god. Among the greatest Chinese emperors according to historians, we have Qin Shihuang, the first emperor of China, Han Wudi, Tang Taizong, and Ming Chengzu. These emperors had the titanic work of unifying in some cases, maintain the unity in others, or protection in many others of millions of Chinese people under the same empire.
