Calcium phosphate is produced when solutions of calcium chloride and sodium phosphate are mixed together. $x\,\text{CaCl}_2 + y\,\text{Na}_3\text{PO}_4 \rightarrow 2\text{Ca}_3(\text{PO}_4)_2 + 12\text{NaCl}$. What are the values of $x$ and $y$ that balance the equation?
- A$x=2$, $y=2$
- B$x=3$, $y=4$
- C$x=6$, $y=3$
- D$x=6$, $y=4$