Which of the following statements about the Han dynasty is true?

A.) The Han developed a standardized Chinese writing system.

B.) The Han constructed the Great Wall of China.

C.) The Han developed Confucianism.

D.) The Han built a central university.

The correct answer among the choices provided is option A. "The Han developed a standardized Chinese writing system." is the true statement among others. The Han period was one of the golden ages in China. The Chinese script was referred to as Han characters.