Which solution forms when phosphorus(V) oxide, $P_4O_{10}$, reacts with water?

Which solution forms when phosphorus(V) oxide, $P_4O_{10}$, reacts with water?

$$\begin{array}{|c|c|c|} \hline \text{Answer}&\text { Product } & \text { pH of solution } \\ \hline A&\mathrm{H}_3 \mathrm{PO}_3 & <7 \\ \hline B&\mathrm{H}_3 \mathrm{PO}_3 & >7 \\ \hline C&\mathrm{H}_3 \mathrm{PO}_4 & <7 \\ \hline D&\mathrm{H}_3 \mathrm{PO}_4 & >7 \\ \hline \end{array}$$