Use the Fundamental Identities to Simplify the Expression $$\frac { \sec ^ { 2 } x } { \tan x } - \tan x$$

Multiple Choice

Use the fundamental identities to simplify the expression.
- $$\frac { \sec ^ { 2 } x } { \tan x } - \tan x$$

A) $\cot x$
B) $\csc x$
C) $\tan ^ { 2 } x$
D) $\tan x$