Find the Axis of Symmetry Associated with the Quadratic Equation $y=3 x^{2}+24 x+51$

Multiple Choice

Find the axis of symmetry associated with the quadratic equation.
- $y=3 x^{2}+24 x+51$

A) $x=-4$
B) $x=3$
C) $x=-3$
D) $x=4$