Find the Foci of the Hyperbola $4 x ^ { 2 } - y ^ { 2 } = 4$

Multiple Choice

Find the foci of the hyperbola.
- $4 x ^ { 2 } - y ^ { 2 } = 4$

A) $( \sqrt { 5 } , 0 ) , ( - \sqrt { 5 } , 0 )$
B) $( 2,0 ) , ( - 2,0 )$
C) $( 0 , \sqrt { 5 } ) , ( 0 , - \sqrt { 5 } )$
D) $( 0,2 ) , ( 0 , - 2 )$