The word "attributes" in paragraph 2 means ______.

A．against future Changes in our life style
B．positive about our present situation
C．serious and hopeful in seeing a shift from the emphasis on economical progress to a better awareness of the nature
D．sorry for a decrease in defense expenditure

A．are successful but not harmful
B．have not been recognized
C．bring about both positive and negative results
D．are Changing in recent time