If the distance between the foci of an ellipse is 6 and the length of the minor axis is 8, then the eccentricity is :

Question

$$\begin {array} {1 1} (1)\;\frac{1}{\sqrt 5} & \quad (2)\;\frac{1}{2} \\ (3)\;\frac{3}{5} & \quad (4)\;\frac{4}{5} \end {array}$$