Write the Standard Form of an Equation of the Ellipse $( - 10,0 ) , ( 10,0 )$

Write the standard form of an equation of the ellipse subject to the given conditions.
-Vertices: $( - 10,0 ) , ( 10,0 )$
Foci: $( - 6,0 ) , ( 6,0 )$

A) $\frac { x ^ { 2 } } { 36 } + \frac { y ^ { 2 } } { 100 } = 1$
B) $\frac { x ^ { 2 } } { 100 } + \frac { y ^ { 2 } } { 64 } = 1$
C) $\frac { x ^ { 2 } } { 100 } + \frac { y ^ { 2 } } { 36 } = 1$
D) $\frac { x ^ { 2 } } { 64 } + \frac { y ^ { 2 } } { 100 } = 1$