Find the Center and the Radius of the Circle $$x ^ { 2 } + ( y - 1 ) ^ { 2 } = 7$$

Multiple Choice

Find the center and the radius of the circle.
- $$x ^ { 2 } + ( y - 1 ) ^ { 2 } = 7$$

A) center $( 0,1 )$ ; radius $= 49$
B) center $( 0,1 ) ;$ radius $= 7$
C) center $( 0,1 )$ ; radius $= \sqrt { 7 }$
D) center $( 1,0 )$ ; radius $= \sqrt { 7 }$