Which of A-D is a disadvantage in using hydrogen fuel cells instead of gasoline engines in vehicles?

Question

Quizplus · Accepted Answer

All of the choices A-D are disadvantages in using hydrogen fuel cells instead of gasoline engines in vehicles. A disadvantage of hydrogen fuel cells is that hydrogen is difficult to store safely, as it is a highly flammable gas that requires special tanks and infrastructure. Furthermore, there is no distribution network of hydrogen fuel in place, meaning that refueling stations would need to be built. Additionally, hydrogen fuel must be produced, most likely from water, by using another energy source, which requires considerable energy and infrastructure. Lastly, hydrogen fuel is not really a source of energy but rather is a way to store energy, so it is not a solution in and of itself.

Which of A-D Is a Disadvantage in Using Hydrogen Fuel