Answer: Nuclear Power
Explanation: Nuclear power is the only large-scale energy-producing technology that takes full responsibility for all its waste and fully costs this into the product. The amount of waste generated by nuclear power is very small relative to other thermal electricity generation technologies.
Ribozymes are biochemically too complex to have ever produced themselves naturalistically. They are an intermediate cellular functioning assembly that cannot survive on its own and they are too restrictive in function to enable metabolism and reproduction at the level of criticality to be considered plausible for life.
Their simplicity relative to RNA and DNA make them an attractive possibility, but they are not strategic enough, robust enough or in any producible using naturalistic processes.
Plasma Membrane is the answer
