Which of the following proposals, if accepted, would work most to reduce the threat to the construction of new factories described in the passage above? A. Environmental cases involving construction should be heard and decided by the courts as quickly as possible. B. Environmental regulations should be published widely as soon as they are established. C. The government should pay for all recently completed factories to be brought up to new environmental standards. D. Industries should conform to strict environmental standards without delay. E. Environmental standards for any factory should not be altered once construction is underway.