Use the Pythagorean Identities to Simplify the Expression $$\frac { \cos ^ { 2 } t + \sin ^ { 2 } t } { \cot ^ { 2 } t + 1 }$$

Multiple Choice

Use the Pythagorean identities to simplify the expression. $$\frac { \cos ^ { 2 } t + \sin ^ { 2 } t } { \cot ^ { 2 } t + 1 }$$

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