Factor Out the Greatest Common Factor $$y ^ { 2 } - 12 y + 36$$

Multiple Choice

Factor out the greatest common factor. Then determine if the polynomial is a perfect square trinomial. If it is, factor it. $$y ^ { 2 } - 12 y + 36$$

A) $( y - 12 ) ^ { 2 }$
B) $( y + 6 ) ^ { 2 }$
C) $( y - 6 ) ^ { 2 }$
D) Not a perfect square trinomial