What's the element to human culture

A．Operas, paintings and many other artistic activities as a whole.
B．Customary manners of behavior and thought related to the environment.
C．Behavioral, perceptual and material components interacting with each other.
D．The different ways people perceive the physical world.

A．The capacity for learning can only be observed in human beings.
B．Biology plays an important role in humans' living in a social and physical setting.
C．Human behavior and thought do not have anything to do with culture.
D．If there were no language communication, humans couldn't have created the present culture.