Factor Completely $- 6 x ^ { 2 } + 18 x + 60$

Multiple Choice

Factor completely: $- 6 x ^ { 2 } + 18 x + 60$

A) $- 6 \left( x ^ { 2 } - 3 x + 10 \right)$
B) $- 6 \left( x ^ { 2 } + 3 x + 10 \right)$
C) $- 6 ( x + 5 ) ( x - 2 )$
D) $- 6 ( x - 5 ) ( x + 2 )$