For the reaction 2N2O5 (g) --> 4NO2 (g) + O2 (g), delta G_298 = -32 kJ/mol. Which of the following statements is correct? a) The reaction is always spontaneous at all conditions. b) The reaction is always nonspontaneous at all conditions. c) Kp for this reaction is less than 1.0 at 298K. d) The reaction could be non spontaneous at very high partial pressures of NO2 (g) and O2 (g). e) The reaction could be non spontaneous at very high partial pressures of N2O5 (g).