Let $f(x) = \dfrac{1}{x-2}$. Find the $x$-coordinates of the points where $f(x) = f^{-1}(x)$. (A) $x = 1 \pm \sqrt{2}$ \quad (B) $x = 2 \pm \sqrt{2}$ \quad (C) $x = 1 \pm \sqrt{3}$ \quad (D) $x = 0, 4$