If afire requires something with exactly eight protons to burn, then what does a fire require to burn?

Answer choices:
- A transportation fuel
 - Something with exactly 2 protons
 - chemical to mechanical energy
 - Something with exactly eight protons
 - Something with exactly 1 proton
 - Burning fuel and air
 - igniting fuel and oxidiser
 - Something with 7 protons

 

    Something with exactly eight protons      