Consider the Following Reaction and Its Corresponding Thermodynamic Data

Consider the following reaction and its corresponding thermodynamic data:
4 KClO₃ (s) →3 KClO₄ (s) + KCl (s) D H ° = - 140 kJ/mol and D S ° = - 45 Jmol ^{- 1}K ^{- 1} At what approximate temperature does this reaction cross-over from being considered spontaneous to being non-spontaneous?

A) It won't cross over. It will always be spontaneous.
B) It won't cross over. It will always be non-spontaneous.
C) 321 K
D) 3111 K
E) 6300 K