Does PH Have an Effect on the Cell Potential (E_cell)

Does pH have an effect on the cell potential (E_cell) for the following oxidation-reduction reaction?

A) Yes, because E_cell values for all redox reactions depend on the pH.
B) Yes, because E_cell values for redox reactions involving the hydronium ion depend on the pH.
C) No, because E_cell values for redox reactions depend only on the major species in the reaction, in this case, Fe²⁺, MnO₄^-, Fe³⁺, and Mn²⁺.
D) No, because E_cell values for redox reactions depend on concentrations and temperatures but not on pH.
E) No, because E_cell values for redox reactions do not depend on the pH.