What statement about Shan (山) is True?

What statement about Shan (山) is True?
A.China is not a mountainous country.
B.Ancient Chinese people believe that Shan preserves Di Qi.
C.Ancient Chinese people like Shui better than Shan.
D.Ancient Chinese people paint Shan in a realistic way.
正确答案：Ancient Chinese people believe that Shan preserves Di Qi.