Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Complete the identity.
- $\sin ( 2 \theta ) \tan \theta + \cos ( 2 \theta ) = ?$

A) $2 \cos ( 2 \theta )$
B) $\cos ( 3 \theta )$
C) 1
D) $\sec ( 2 \theta )$