Find the Standard Form of the Equation of the Ellipse $( \pm 7,0 )$

Find the standard form of the equation of the ellipse with the given characteristics and center at the origin. ​
Vertices: $( \pm 7,0 )$ ;Foci: $( \pm 5,0 )$ ​

A) $\frac { x ^ { 2 } } { 49 } - \frac { y ^ { 2 } } { 24 } = 1$
B) $\frac { x ^ { 2 } } { 7 } + \frac { y ^ { 2 } } { 5 } = 1$
C) $\frac { x ^ { 2 } } { 49 } + \frac { y ^ { 2 } } { 24 } = 1$
D) $\frac { x ^ { 2 } } { 49 } + \frac { y ^ { 2 } } { 25 } = 1$
E) $\frac { x ^ { 2 } } { 25 } + \frac { y ^ { 2 } } { 24 } = 1$