Use the Pythagorean Identities to Simplify the Expression $$\frac { \sec ^ { 2 } \theta - \tan ^ { 2 } \theta } { 1 + \tan ^ { 2 } \theta }$$

Multiple Choice

Use the Pythagorean identities to simplify the expression. $$\frac { \sec ^ { 2 } \theta - \tan ^ { 2 } \theta } { 1 + \tan ^ { 2 } \theta }$$

A) $$\sec ^ { 2 } \theta$$
B) $$\csc ^ { 2 } \theta$$
C) $$\cos ^ { 2 } \theta$$
D) $$\sin ^ { 2 } \theta$$
E) 1