A
Only one
B
Only two
C
All three
D
None
Correct answer: (c) All three
Explanation
- A
Only one
Only one. All three green-hydrogen uses hold.
- B
Only two
Only two. ICE, blending and fuel cells are all listed pathways.
- C
All three
All three. Direct ICE fuel, blend with natural gas, and hydrogen fuel-cell vehicles.
- D
None
None. Each use is real.
Summary. Official key is (c) all three. Green hydrogen can run in modified internal-combustion engines, can be blended into natural-gas grids for heat and power, and is the fuel for fuel-cell electric vehicles.