Complete the Identity $2 \tan x - ( 1 + \tan x ) ^ { 2 } = ?$

Multiple Choice

Complete the identity.
- $2 \tan x - ( 1 + \tan x ) ^ { 2 } = ?$

A) $- \sec ^ { 2 } x$
B) 1
C) 0
D) $1 - \sin x$