Consider the Function $$y = \cos ( 6 x - \pi )$$

Multiple Choice

Consider the function $$y = \cos ( 6 x - \pi )$$ . Specify the period.

A) $$\frac { \pi } { 6 }$$
B) $$1$$
C) $$2 \pi$$
D) $$\frac { \pi } { 3 }$$
E) $$\frac { 4 \pi } { 3 }$$