The passage suggests that George P. Marsh and today's ecological reformers would be most likely to agree with which one of the following statements? A. Regulating industries in order to protect the environment does not conflict with the self interest of those industries. B. Solving the environmental crisis does not require drastic and costly remedies. C. Human despoliation of the Earth has caused widespread environmental damage. D. Environmental improvement and economic progress are equally important goals. E. Rather than blaming specific industries, general greed should be denounced as the cause of environmental destruction.