Which of the following describes the behavior of f(x)=2x2+3x−5x2−1f(x) = \frac{2x^2 + 3x - 5}{x^2 - 1}f(x)=x2−12x2+3x−5 as x→1x \to 1x→1?
It approaches ∞\infty∞
It approaches 7/27/27/2
It approaches 000
It approaches −∞-\infty−∞