If Possible, Factor the Polynomial Completely $z ^ { 2 } - 121$

Multiple Choice

If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.
- $z ^ { 2 } - 121$

A) $z ^ { 2 } - 121$
B) $( z - 11 ) ^ { 2 }$
C) $( z + 11 ) ^ { 2 }$
D) $( z + 11 ) ( z - 11 )$