Evaluate the Following Expression $\frac { 3 } { \tan 4 x } + \frac { 3 } { \cot 4 x }$

Multiple Choice

Evaluate the following expression.(x ? (?/8) n,where n is a whole number) ? $\frac { 3 } { \tan 4 x } + \frac { 3 } { \cot 4 x }$ ?

A) 3 (tan 4x - cot 4x)
B) -4 (tan 4x - cot 4x)
C) 3 (tan 4x + cot 4x)
D) - (tan 4x - cot 4x)
E) - (tan 4x + cot 4x)