单项选择题
1. Which of the following statement about the Korean Confucian Scholar, Yi I, is not true?
A.a) Yi I placed emphasis on the principle of Li and secondary force of Gi which is energy force.
B.b) Yi I placed a greater emphasis on Gi and on more concrete material and applied emphasis.
C.c) Yi I was influenced by neo-Confucianism established by Zhu Xi.
D.d) Yi I influenced the development of practical learning or Silhak.
E.e) Yi I is a part of Sunglihak, the most influential philosophy in Korea.