When the Equation ___ PCl₅ + ___ H₂O $\rightarrow$ ___ H₃PO₄ + ___ HCl Is Properly Balanced,what Is the H₃PO₄

When the equation ___ PCl₅ + ___ H₂O $\rightarrow$ ___ H₃PO₄ + ___ HCl is properly balanced,what is the sum of the coefficients?

A) 8 or less
B) 9
C) 10
D) 11
E) 12 or more