Write an Equation for the Hyperbola $( 5,0 ) , ( - 5,0 )$

Multiple Choice

Write an equation for the hyperbola.
-vertices at $( 5,0 ) , ( - 5,0 )$ ; foci at $( 9,0 ) , ( - 9,0 )$

A) $\frac { x ^ { 2 } } { 25 } - \frac { y ^ { 2 } } { 81 } = 1$

B) $\frac { x ^ { 2 } } { 25 } - \frac { y ^ { 2 } } { 56 } = 1$

C) $\frac { x ^ { 2 } } { 81 } - \frac { y ^ { 2 } } { 25 } = 1$

D) $\frac { x ^ { 2 } } { 56 } - \frac { y ^ { 2 } } { 25 } = 1$