Answer: By using electrolysis.
Explanation:
Electrolysis is a chemical change produced by sending an electric current through a compound. Electrolysis works because the hydrogen and oxygen ions are held together by an electric attraction.
Bohrs model says that electrons move in fixed shells (which have fixed distances) around the nucleus of an atom.
In conduction, the thermal energy of a particle is transferred to other particles throughout the solid. The particles with more energy are transferred to those with less.
I believe the answer is A. However, I would double check the formula.