According to the author, anthropologists would have all culture viewed ______.

A．the same way to transfer ideas
B．the potential for increasing sound patterns
C．the potential for expanding vocabulary
D．the same grammatical structures

A．they had no idea of scientific forestry
B．they were not aware of the significance of nature study
C．they had little or no sense of environmental protection
D．they had no idea of how to make good use of raw materials