Factor the Polynomial Completely $6 x ^ { 3 } - 60 x ^ { 2 } + 126 x$

Multiple Choice

Factor the polynomial completely. If the polynomial cannot be factored, write "prime."
- $6 x ^ { 3 } - 60 x ^ { 2 } + 126 x$

A) $6 x ( x + 7 ) ( x + 3 )$
B) $x ( 6 x + 7 ) ( x + 3 )$
C) $6 x ( x - 7 ) ( x - 3 )$
D) $x ( x + 7 ) ( 6 x + 18 )$