Find an Equation Using the Cotangent Function That Has the Same

Find an equation using the cotangent function that has the same graph as $y = \tan x$ .

A) $y = - \cot \left( x + \frac { \pi } { 4 } \right)$
B) $y = - \cot x$
C) $y = - \cot \left( x + \frac { \pi } { 2 } \right)$
D) $y = \cot \left( x + \frac { \pi } { 3 } \right)$
E) $y = - \cot \left( 2 x + \frac { \pi } { 2 } \right)$