What Is the Difference Between G and G

Multiple Choice

What is the difference between G and G?

A) (G refers to the formation of a compound from its elements; G can be defined for any reaction.)
B) (G refers to the formation of a pure compound; G can be defined for an impure compound.)
C) (G refers to a reaction that goes to completion; G is defined for a reaction that goes to any extent.)
D) (G refers to the conversion of reactants in their standard state to products in their standard state; G is defined for a reaction under any conditions.)
E) (G refers to reactions of one mole quantities of reactants; G is defined for any quantity of reactants.)