Biochemists use a modified value for standard ΔG values because

A) all reagents are not at a 1 molar concentration.
B) the pH in living systems is seldom, if ever, near 0.
C) the concentration of water is not at 1 molar concentration.
D) the reagents are not one molar and the pH = 7.
E) All of these justify why biochemists use a special ΔG value.