According to the passage, the behavior of making tools for producing material objects should fall within the category of ________ component of culture.

A．all the organisms to survive
B．all the organisms to acquire learned behavior
C．human beings to respond to experience within an environment
D．human beings to survive and live in a society

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.