Which among the following graphs explains the photoelectric effect

$$\begin{gathered} K.E=E-E^0 \\ K.E =h\nu -h{\nu }^0 \\ h\nu =K.E+h{\nu }^0 \\ \nu =\frac{K.E}{h}+{\nu }^0 \end{gathered}$$

The graph is drawn between K.E vs Frequency, straight line obtained with ${\mathrm{\nu }}^0$ intercept along X-axis