Final answer:
Biofuel is the most suitable alternative energy technology for powering a car, as it can directly substitute for gasoline in combustion engines.
Step-by-step explanation:
Of the alternative energy technologies listed, biofuel is most likely to be used to power a car. Biofuel, such as ethanol derived from corn, is a form of biomass-generated energy that can be used as a substitute for gasoline in vehicles. Unlike wind or hydropower, which primarily produce electricity, biofuel can directly replace fossil fuels in existing combustion engines, without the need for large batteries or electrical systems revolutionizing the car’s design.
Biodiesel is another type of biofuel that is formed from vegetable oils or animal fats and can be used in diesel engines. These biofuels are considered carbon neutral because the CO2 released when they are burned is balanced by the CO2 absorbed by the plants that are grown to produce them.
Conversely, wind and hydropower are less suitable for directly powering vehicles due to their nature of producing electricity which requires conversion and storage, adding complexity to the powertrain of a car. Geothermal energy, while valuable for electricity production, is also not practical for vehicular use due to the need for a stationary source of heat to generate steam.
Answer: C) biofuel