Complete the Identity $$\frac { \sin x } { \cos x } + \frac { \cos x } { \sin x } = ?$$

Complete the identity.
- $$\frac { \sin x } { \cos x } + \frac { \cos x } { \sin x } = ?$$

A) $\sec x \csc x$
B) $- 2 \tan ^ { 2 } x$
C) $1 + \cot x$
D) $\sin x \tan x$