The reaction AB has a total (or net) reaction free energy change, AG = 0 kJ/mol, and has a standard state free energy change, AG = -7.5 kJ/mol. Choose the correct statement that describes this system. Then provide a brief explanation for your choice. Just selecting a letter will not yield full credit. (2.5 points) a. Some A will react to form B until equilibrium is reached. b. The system is at equilibrium and contains more A than B. c. Some B will react to form A until equilibrium is reached. d. The system is at equilibrium and contains more B than A