Use the Figure Above to Answer the Following Question

Multiple Choice

Use the figure above to answer the following question
-Another conclusion drawn from the bar graph is that ______________.

A) neither recycling, reducing consumption, nor finding alternative materials will keep prices from rising
B) our collective use of metal resources is presently unsustainable
C) we are using metals sustainably at present
D) after 400 years all the metals shown will have entirely disappeared from the earth
E) known global reserves are increasing to keep pace with consumption