Evaluate the Following Expression $\theta$ $\neq$ $\pi$ +2 $\pi$ N)/6, Where N Is a Whole Number)

Multiple Choice

Evaluate the following expression.( $\theta$ $\neq$ ( $\pi$ +2 $\pi$ n) /6, where n is a whole number)
$\frac { \sec 3 \theta - 1 } { 1 - \cos 3 \theta }$

A) - cos 3 $\theta$
B) cos 3 $\theta$
C) sec 3 $\theta$
D) - sec 3 $\theta$
E) sec 3 $\theta$ - cos 3 $\theta$