Find the Domain of the Function $$g ( s ) = \frac { - 3 s } { s - 9 }$$

Find the domain of the function. ​​ $$g ( s ) = \frac { - 3 s } { s - 9 }$$ ​

A) s = 9
B) all real numbers s ≠ 9,s ≠ 0
C) ​s = 9,s = 0
D) all real numbers s ≠ 9
E) $$\varnothing$$