Solve question 51


$$\begin{gathered} \mathbf{51}\mathbf{.}\mathbf{ } The range of the function y = \frac{8}{9 - x^2} is \\ \left(A\right) \left(-\infty , \infty \right) - \left\{\pm 3\right\} \left(B\right) [\frac{8}{9}, \infty ) \left(C\right) \left(0, \frac{8}{9}\right) \left(D\right) \left(-\infty , 0\right) \cup [\frac{8}{9}, \infty ) \end{gathered}$$