Switching to hydrogen-based transportation presents a daunting challenge not shared by other energy alternatives we've considered. With this in mind, which of the following is false? Option A Construct advanced nuclear fission power plants and connect them to the existing power grid. Option B Design economical hydrogen-based fuel cells and deploy them in existing vehicles. Option C Design efficient, economical wind turbines and connect them to the existing power grid. Option D Develop effective photovoltaic power stations and connect them into the existing power grid. Option E Invent nuclear fusion power plants and connect them to the existing power grid. Option F Make solar water heating competitive and modify home construction to accommodate it