Solve the Absolute Value Equation $\left| \frac { 4 x + 12 } { 3 } \right| = 4$

Solve the absolute value equation.
- $\left| \frac { 4 x + 12 } { 3 } \right| = 4$

A) 6,0
B) $- 6,0$
C) $- 6,6$
D) $\varnothing$