Factor the Greatest Common Factor from the Polynomial $$3 x ^ { 2 } - 6 x$$

Multiple Choice

Factor the greatest common factor from the polynomial. Assume any variable exponents represent whole numbers.
- $$3 x ^ { 2 } - 6 x$$

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