Eonsider the function $f(x)=\frac{x-1}{x^2},$ which has first derivative $f^{\text{'}}(x)=\frac{2-x}{x^3}$ and second derivative $f^{\text{'}\text{'}}(x)=\frac{2x-6}{x^4}.$ The function $f$ is

increasing on $(2,)$ and decreasing on $(-,2).$

increasing on $(-1,1)$ and decreasing on $(-,-1)(1,).$

increasing on $(0,2)$ and decreasing on $(-,0)(2,).$

increasing on $(-,2)$ and decreasing on $(0,2).$

increasing on $(-,0)(2,)$ and decreasing on $(0,2).$