Solve the Equation $(2 m-4)^{2}-4(2 m-4)-5=0$ A) $\left\{-\frac{5}{4}, \frac{1}{2}\right\}$ B) $\left\{\frac{3}{2}, \frac{9}{2}\right\}$ C) $\left\{\frac{3}{2},-\frac{9}{2}\right\}$

Solve the equation.
- $(2 m-4) ^{2}-4(2 m-4) -5=0$

A) $\left\{-\frac{5}{4}, \frac{1}{2}\right\}$

B) $\left\{\frac{3}{2}, \frac{9}{2}\right\}$

C) $\left\{\frac{3}{2},-\frac{9}{2}\right\}$

D) $\left\{\frac{5}{2},-\frac{1}{2}\right\}$