Solve the Equation and Express the Solution in Exact Form $\log ( 4 + x ) - \log ( x - 3 ) = \log 2$

Multiple Choice

Solve the equation and express the solution in exact form.
- $\log ( 4 + x ) - \log ( x - 3 ) = \log 2$

A) $\varnothing$
B) $\{ 10 \}$
C) $\{ - 10 \}$
D) $\left\{ \frac { 1 } { 2 } \right\}$