Solve the Equation $$2 ^ { ( 7 + 3 x ) } = \frac { 1 } { 4 }$$

Multiple Choice

Solve the equation.
- $$2 ^ { ( 7 + 3 x ) } = \frac { 1 } { 4 }$$

A) $\left\{ \frac { 1 } { 2 } \right\}$
B) $\{ 1 \}$
C) $\{ 3 \}$
D) $\{ - 3 \}$