Which of the Following Regarding Redox Reactions Is NOT Correct

Which of the following regarding redox reactions is NOT correct?

A) Standard free energy change for a redox reaction is related to the standard reduction potential.
B) Standard free energy change for a redox reaction is related to the number of electrons transferred.
C) For redox reactions with negative standard reduction potentials,standard free energy change is negative.
D) Redox reactions must occur in pairs,where the total number of electrons involved in the oxidation equals the total number involved in the reduction.