Evaluate the Following Expression $5 \tan \left( \frac { \pi } { 2 } - \theta \right) \tan \theta$

Evaluate the following expression. ?? $5 \tan \left( \frac { \pi } { 2 } - \theta \right) \tan \theta$ ?

A) -6
B) 6
C) 4
D) 5
E) -5