Solve the Problem $\theta ( 0 \leq \theta < 2 \pi )$

Multiple Choice

Solve the problem.
-For what values of $\theta ( 0 \leq \theta < 2 \pi )$ do maximum r-values occur on the graph of the polar equation $\mathrm { r } = - 2 + 2 \cos \theta$ ? Note that a maximum $\mathrm { r }$ -value occurs at a point that is the maximum distance from the pole.

A) $0 , \pi$
B) $\pi$
C) 0
D) $\frac { \pi } { 2 } , \frac { 3 \pi } { 2 }$