Solve the Equation $|3 m + 6| = 9$ A) $\{ - 5,1 \}$

Multiple Choice

Solve the equation.
- $|3 m + 6| = 9$

A) $\{ - 5,1 \}$
B) $\left\{ - \frac { 5 } { 2 } , \frac { 1 } { 2 } \right\}$
C) $\varnothing$
D) $\{ - 1,5 \}$