Standard Free Energy of a Reaction Can Be Used for All

Standard free energy of a reaction can be used for all of the following EXCEPT

A) predict the direction in which a reaction will proceed under standard conditions of temperature, concentrations and pH.
B) predict free energy changes for reactions given the concentrations of reactants and products that are unequal to 1 M.
C) predict the rate of a chemical reaction.
D) predict the standard free energy change of the reaction at pH 7.
E) predict the equilibrium constant for a reaction.