Factor $- 6 z ^ { 3 } + 60 z ^ { 2 } - 144 z$

Multiple Choice

Factor: $- 6 z ^ { 3 } + 60 z ^ { 2 } - 144 z$

A) $- 6 z ( z - 6 ) ( z - 4 )$
B) $z ( z - 6 ) ( 6 z - 24 )$
C) $6 z ( z - 6 ) ( z - 4 )$
D) $- 6 ( z + 6 ) ( z - 4 )$
E) Nonfactorable over the integers