Which of the following, if true, most weakens the argument? A. Mullentown's manufacturing plants are not the only source of pollution there. B. Detailed plans would reveal that measures to reduce released pollutants would also reduce manufacturers' costs for materials, waste disposal, and legal services C. Pollutants that manufacturing processes create but that are not released directly into the environment must nonetheless be collected and prepared for disposal D. Any reductions in pollutants released from Mullentown's manufacturing plants would not be noticeable for at least five years. E. Each manufacturer will be required to submit its plan to a committee appointed by Mullentown's officials.