Indicate Which of the Following Reactions Results in a Positive $\Delta$

Indicate which of the following reactions results in a positive $\Delta$ S_sys.

A) Ba(NO₃ ) ₂ (aq) + Na₂ SO₄ (aq) ⇆ BaSO₄ (s) + 2 NaNO₃ (aq)
B) 4 Fe(s) +3 O₂ (g) ⇆ 2 Fe₂ O₃ (s)
C) 2 H₂ (g) + O₂ (g) ⇆ 2 H₂ O(g)
D) Zn(s) + 2 HCl(aq) ⇆ ZnCL₂ (aq) + H₂ (g)
E) 2 Na(s) + CL₂ (g) ⇆ NaCl(s)