If \[x+y+z=0,\] then \[3\left[ \frac{{{x}^{2}}}{yz}+\frac{{{y}^{2}}}{zx}+\frac{{{z}^{2}}}{xy} \right]\]=?

• A. \[{{\left( xyz \right)}^{2}}\]
• B. \[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}\]
• C. 9
• D. 3