The equations of the normals at the ends of latus rectum of the parabola \[{{y}^{2}}=4ax\] are given by

• A.            \[{{x}^{2}}-{{y}^{2}}-6ax+9{{a}^{2}}=0\]
• B.            \[{{x}^{2}}-{{y}^{2}}-6ax-6ay+9{{a}^{2}}=0\]
• C.            \[{{x}^{2}}-{{y}^{2}}-6ay+9{{a}^{2}}=0\]
• D.            None of these