Find the Exact Value $\cot 2 \pi$ A) $\frac { \sqrt { 2 } } { 2 }$

Multiple Choice

Find the exact value. Do not use a calculator.
- $\cot 2 \pi$

A) $\frac { \sqrt { 2 } } { 2 }$
B) 0
C) 1
D) undefined