Evaluate the Following Expression $\neq$ $\pi$ /10 $\pi$ N, Where N Is a Whole Number)

Multiple Choice

Evaluate the following expression.(x $\neq$ $\pi$ /10 + $\pi$ n, where n is a whole number)
$5 \cos 5 x - \frac { 5 \cos 5 x } { 1 - \tan 5 x }$

A) $\frac { 10 \sin 5 x \cos 5 x } { \sin 5 x - \cos 5 x }$
B) $\frac { - 5 \sin 5 x \cos 5 x } { \sin 5 x + \cos 5 x }$
C) $\frac { 5 \sin 5 x \cos 5 x } { \sin 5 x - \cos 5 x }$
D) $\frac { - 5 \sin 5 x \cos 5 x } { \sin 5 x - \cos 5 x }$
E) $\frac { 5 \sin 5 x \cos 5 x } { \sin 5 x + \cos 5 x }$