Which of these statements regarding the storage materials is false?
a) Hydrogen has the highest specific energy, but its energy density is quite low
b) LP gas and gasoline have the same specific energy and thus are equally well suited as fuels for a vehicle
c) Even though carbohydrates have a lower specific energy than hydrocarbon fuels their energy density is higher because they are solids
d) The energy density of Li-ion batteries ig Iower because it's another type of storage material