Solve the Equation and Express the Solution in Exact Form $\log _ { 2 } \sqrt { 2 x ^ { 2 } } = \frac { 9 } { 2 }$

Multiple Choice

Solve the equation and express the solution in exact form.
- $\log _ { 2 } \sqrt { 2 x ^ { 2 } } = \frac { 9 } { 2 }$

A) $\{ 16 \}$
B) $\{ - 16,16 \}$
C) $\{ - 256,256 \}$
D) $\{ - 8,8 \}$