Use Interval Notation to Express the Solution Set of the Inequality

Multiple Choice

Use interval notation to express the solution set of the inequality below. $| 3 x - 6 | \geq 3$

A) $[ - 1,1 ]$
B) $[ - 3 , - 1 ]$
C) $[ 1,3 ]$
D) $( - \infty , - 3 ] \cup [ - 1 , \infty )$
E) $( - \infty , 1 ] \cup [ 3 , \infty )$