Find the Domain of the Expression $$\frac { 7 x } { x - y }$$

Multiple Choice

Find the domain of the expression.
- $$\frac { 7 x } { x - y }$$

A) $\{ x \mid x \neq y \}$
B) $\{ x \mid x \neq 0$ and $y \mid y \neq 0 \}$
C) $\{ x \mid x \neq - y \}$
D) $\{ x \mid x \neq 1$ and $y \mid y \neq 1 \}$