Find the Specified Domain
-For $f(x)=\frac{1}{x-4}$ And $g(x)=\frac{3}{x}$ , What Is the Domain Of

Multiple Choice

Find the specified domain
-For $f(x) =\frac{1}{x-4}$ and $g(x) =\frac{3}{x}$ , what is the domain of $f \circ g$ ?

A) $\left(0, \frac{3}{4}\right) \cup\left(\frac{3}{4}, \infty\right)$
B) $(-\infty, 0) \cup(0, \infty)$
C) $(-\infty, 0) \cup(0,4) \cup(4, \infty)$
D) $(-\infty, 0) \cup\left(0, \frac{3}{4}\right) \cup\left(\frac{3}{4}, \infty\right)$