Factor Completely $$5 x ^ { 4 } - 75 x ^ { 3 } + 270 x ^ { 2 }$$

Multiple Choice

Factor completely. If the polynomial cannot be factored, write ʺprime.ʺ
- $$5 x ^ { 4 } - 75 x ^ { 3 } + 270 x ^ { 2 }$$

A) $x ^ { 2 } ( x - 6 ) ( 5 x - 45 )$
B) $x ^ { 2 } ( 5 x - 30 ) ( x - 9 )$
C) $5 \left( x ^ { 2 } - 6 \right) \left( x ^ { 2 } - 9 \right)$
D) $5 x ^ { 2 } ( x - 6 ) ( x - 9 )$