Guo divides the words used by the ancients to describe colors into two categories: concrete and imagery. Concrete is the color of words that come from ___________. The imagery words are based on everything superimposed on the way humans perceive and record the world, derived from human activities, emotions and imagination.

A、the nature and the society

B、the humans and the nature

C、the heavens and the earth

D、the ancient and the modern