What Is the Oxidizing Agent in the Reaction 6 H₂O(l) $\rightarrow$

What is the oxidizing agent in the reaction 6 H₂O(l) + AL₂S₃(g) $\rightarrow$ 2 Al(OH) ₃(s) + 3 H₂S(g) ?

A) H₂O
B) Al₂S₃
C) Al(OH) ₃
D) H₂S
E) This is not a redox reaction.