Final answer:
The Confucian concept of li refers to the observance of proper rituals and social conduct, which helps in the transformation of character and the development of moral responsibilities.
Step-by-step explanation:
The Confucian concept of li refers to the observance of proper rituals and social conduct. Li plays an important role in the transformation of character and the development of moral responsibilities. By carrying out rituals, individuals cultivate virtues such as filial piety and become more sensitive to human interaction and social life.