$\begin{array}{1 1}Eccentricity =\frac{\sqrt 15}{4}\quad Latus\; Rectum = \frac{1}{2} \\ Eccentricity =\frac{\sqrt 15}{2}\quad Latus \;Rectum = \frac{1}{2} \\Eccentricity =\frac{\sqrt 15}{4}\quad Latus \;Rectum = \frac{1}{4} \\ Eccentricity =\frac{\sqrt 15}{2}\quad Latus \;Rectum = \frac{1}{4} \end{array} $