GRE Reading Comprehension: ETS-GRE阅读ETS - LE81C46E54WG0I8K7

Which one of the following, if true, would most weaken an argument of opponents of rDNA technology? A. New safety procedures developed by rDNA researchers make it impossible for genetically altered microorganisms to escape from laboratories. B. A genetically altered microorganism accidentally released from a laboratory is successfully contained. C. A particular rDNA-engineered microorganism introduced into an ecosystem attracts predators that keep its population down. D. Genetically altered organisms designed to process sewage into methane cannot survive outside the waste treatment plant. E. A specific hereditary disease that has plagued humankind for generations is successfully eradicated.