Which of the following is not a step in balancing redox reactions in acidic solution, using the half-reaction method?

a) h2o and oh- are added as needed to the half-reaction equations to make the number of oxygen and hydrogen atoms balance.

b) divide the chemical equation into two half-reaction equations, identifying which half-reaction is oxidation and which is reduction.

c) h2o and h+ are added as needed to the half-reaction equations to make the number of oxygen and hydrogen atoms balance.

d) multiply each term in one of the half-reaction equations by a factor that will make the number of electrons lost (in the oxidation) equal to the number of electrons gained (in the reduction).