Solve the Equation $\log ( 5 + x ) - \log ( x - 4 ) = \log 2$

Multiple Choice

Solve the equation.
- $\log ( 5 + x ) - \log ( x - 4 ) = \log 2$

A) $\left\{ \frac { 1 } { 2 } \right\}$
B) $\varnothing$
C) $\{ 13 \}$
D) $\{ - 13 \}$