Find the Domain of the Function $$g ( w ) = \frac { 4 w } { w + 9 }$$

Multiple Choice

Find the domain of the function. $$g ( w ) = \frac { 4 w } { w + 9 }$$

A) all real numbers $w \neq - 9$
B) all real numbers $w \neq - 9 , w \neq 0$
C) all real numbers
D) $w = - 9 , w = 0$
E) $w = - 9$