Identify the Correct Union of Intervals for the Inequality $x \leq - 18$

Multiple Choice

Identify the correct union of intervals for the inequality. $x \leq - 18$ or $x > 4$

A) $\quad ( - \infty , - 18 ] \cup ( 4 , \infty )$
B) $\quad ( - \infty , - 18 ) \cup ( 4 , \infty )$
C) $\quad ( - \infty , - 18 ] \cup ( 4 , \infty ]$
D) $\quad ( - \infty , - 18 ] \cup [ 4 , \infty )$
E) $( - \infty , - 18 ) \cup [ 4 , \infty )$