Find the Phase Shift of the Function $$y = - 3 \cos ( 4 x + \pi )$$

Multiple Choice

Find the phase shift of the function.
- $$y = - 3 \cos ( 4 x + \pi )$$

A) $\frac { \pi } { 3 }$ units to the left
B) $3 \pi$ units to the right
C) $4 \pi$ units to the right
D) $\frac { \pi } { 4 }$ units to the left