Evaluate the Following Expression $$2 \sin t \csc \left( \frac { \pi } { 2 } - t \right)$$

Multiple Choice

Evaluate the following expression.(t ? ?/2+?n,where n is a whole number) ? $$2 \sin t \csc \left( \frac { \pi } { 2 } - t \right)$$ ?

A) - 2 tan t
B) 2 tan t
C) 2 sin t
D) - 2 cot t
E) 2 cot t