The Current Economic Model of the United States Depends on Continued

The current economic model of the United States depends on continued economic growth. What did Dr. Meadows conclude about that?

A) It worked pretty well as long as the population didn't grow too fast.
B) Economic growth works well and, at current trends, will be able to support our population almost indefinitely.
C) It would cause resource depletion and an eventual population collapse. We need to change to more sustainable living not focused on growth.
D) It would inevitably lead to a global, uncontrolled, population crash and the end of civilization as we know it.
E) It is unsustainable and if humans are to survive we need to go back to nature and somehow shrink our population.