Find the Exact Value Of $\sin ( 2 \pi )$ And $\cos ( - 2 \pi )$

Multiple Choice

Find the exact value of $\sin ( 2 \pi )$ and $\cos ( - 2 \pi )$

A) $\sin ( 2 \pi ) = 1 , \quad \cos ( - 2 \pi ) = - 1$
B) $\sin ( 2 \pi ) = 0 , \quad \cos ( - 2 \pi ) = - 1$
C) $\sin ( 2 \pi ) = 1 , \quad \cos ( - 2 \pi ) = 0$
D) $\sin ( 2\pi ) = 0 , \quad \cos ( - 2 \pi ) = - 1$
E) none of these