At 25 °C the values of the standard enthalpy change and of the standard entropy change for certain reaction are -85.2 kJ/mol and -170.2 J/(K mol). Assuming that these values do not change with temperature, in which temperature range is the chemical reaction spontaneous?

O a. T < 500 K

O b.T> 600 K

O c. 500 K

O d. 600 K

O e. The reaction is spontaneous at every temperature.