In the first reaction of the glycolytic pathway, the enzyme hexokinase uses ATP to catalyze the phosphorylation of glucose, yielding glucose 6-phosphate and ADP. The ΔG° value for this reaction is -17 kJ/mole. The enzyme glucose 6-phosphatase catalyzes a "reverse" reaction, in which glucose 6-phosphate is converted back to glucose, and a phosphate is released. The ΔG° value for this reaction is -14 kJ/mole. What is the ΔG° value for the following reaction? ATP + H₂O → ADP + Pᵢ
A) -3 kJ/mole B) +3 kJ/mole C) -31 kJ/mole D) +31 kJ/mole E) -15.5 kJ/mole