Final answer:
The common fuels for IC-powered forklifts are gasoline and diesel, with propane and natural gas also being used; biodiesel and hydrogen are less common alternatives being developed.
Step-by-step explanation:
The common types of fuel for Internal Combustion (IC)-powered forklifts include gasoline, diesel, propane, and natural gas. Electric forklifts use electricity stored in batteries and are not considered IC-powered. Solar power is generally used in some vehicles as an auxiliary power source rather than the primary fuel. Alternative fuels such as biodiesel and hydrogen are being explored for various vehicles, including forklifts, but they are not yet as common as gasoline, diesel, propane, and natural gas. Considering the provided options, the correct answer is B) Gasoline and diesel.