It is generally believed that the most important golden age that ever occurred in the history of human civilization was ( ).

A. from 5000 BC to 3000 BC, ancient Egypt (Nile valley), ancient Babylon (Mesopotamia), ancient India (Indus river, Ganges river Basin) and China (Yellow River and Yangtze river Basin) were later called "four ancient civilizations".
B. from 800 BC to 200 BC, the eastern and western philosophical systems and social and cultural systems were formed, also known as the axial age.
C. the Roman Empire in the west and the Tang and Song Dynasties in the east
D. from the 14th century to the beginning of the 17th century, the European ideological liberation movement lasted for about 300 years, namely the European Renaissance.