A panel is discussing the future of transportation. One expert says, "To truly decarbonize our transportation sector, we need to move beyond fossil fuels. ______ offers a promising solution, especially for heavy vehicles and long-distance travel, as it can be produced from biomass and other waste materials."
Which alternative energy source is the expert most likely suggesting?
A) Solar panels
B) Hydrogen fuel cells
C) Tidal power
D) Biofuels
E) Geothermal heating