Answer
(d)
Work Step by Step
The factors considered when determining the Energy Return on Energy Invested (EROEI) of hydrogen fuel cell vehicles include the efficiency of isolating hydrogen, by-products of generating electricity from hydrogen, the energy produced by the reaction between hydrogen and oxygen, and the energy required to compress or liquefy hydrogen for transport. The efficiency of electric engines is not directly related to the EROEI of hydrogen fuel cell vehicles, as it deals with the effectiveness of converting electrical energy into mechanical energy for vehicle propulsion
The answer is (d).
