According to John Muir, what is the purpose of natural resources?
A. The value of natural resources lies only in what they provide to men, men of
business and industry, especially.
B. The unpredictability of nature helps teach people to be aware that dangers are
everywhere and they must be prepared.
C. Nature's mountains, rivers, blooms -- all of its bounty -- are a kind of cathedral
that people should visit regularly in order to cleanse their spirits and nurture
their souls.
D. The nation's natural resources need to be used to make the machinery and
weaponry that will allow America to spread its religion, culture and economic
system to all corners of the world, with force if necessary,