$\begin {array} {1 1} (A)\;Axis : Major \: axis \: is\: along \: the \: x - axis, foci : ( \pm 10\sqrt 3, 0), vertices : ( \pm 20, 0), Length \: of \: major\: axis = 40, length \: of \: the \: minor \: axis : 20, eccentricity \: e = \sqrt 3 / 2, length \; of \: the \: latus \: rectum = 10 \\ (B)\; Axis : Major \: axis \: is\: along \: the \: x - axis, foci : ( \pm \sqrt 3, 0), vertices : ( \pm 40, 0), Length \: of \: major\: axis = 40, length \: of \: the \: minor \: axis : 20, eccentricity \: e = \sqrt 3 / 2, length \; of \: the \: latus \: rectum = 10 \\ (C)\;Axis : Major \: axis \: is\: along \: the \: y - axis, foci : ( 0, \pm \sqrt 3), vertices : (0, \pm 40), Length \: of \: major\: axis = 40, length \: of \: the \: minor \: axis : 20, eccentricity \: e = \sqrt 3 / 2, length \; of \: the \: latus \: rectum = 10 \\ (D)\;Axis : Major \: axis \: is\: along \: the \: y - axis, foci : (0, \pm 10\sqrt 3), vertices : ( 0, \pm 20), Length \: of \: major\: axis = 40, length \: of \: the \: minor \: axis : 20, eccentricity \: e = \sqrt 3 / 2, length \; of \: the \: latus \: rectum = 10 \end {array}$