At Equilibrium, for the Reaction a + B→C , It $\triangle$

Multiple Choice

At equilibrium, for the reaction A + B→C , it is possible to calculate $\triangle$ G ⁰ as

A) -RT ln [C] /[A][B]
B) -RT [C] / [A][B]
C) -RT/ ln K_eq
D) Ln K_eq / RT
E) $\triangle$ G ⁰ is measured, not calculated