$f(x)=\frac{-2 x^2+14}{x^2-49}$



Which statement describes the behavior of the graph of the function shown at the vertical asymptotes?

AAs $x$ approaches -7 from the left, $y$ approaches $\infty$.

BAs $x$ approaches -7 from the right, $y$ approaches $-\infty$.

CAs $x$ approaches 7 from the left, $y$ approaches $-\infty$.

DAs $x$ approaches 7 from the right, $y$ approaches $-\infty$.