Solve the Equation Below For $\theta$ $( 0 \leq \theta \leq 2 \pi )$

Solve the equation below for $\theta$ $( 0 \leq \theta \leq 2 \pi )$ . For some of the equations you should use the trigonometric identities listed in this section. Use the trace feature of a graphing utility to verify your results. $\sin 2 \theta - \cos \theta = 0$

A) $\frac { \pi } { 4 } , \frac { 5 \pi } { 4 }$
B) $\frac { \pi } { 4 } , \frac { 3 \pi } { 4 } , \frac { 5 \pi } { 4 } , \frac { 7 \pi } { 4 }$
C) $\frac { \pi } { 6 } , \frac { 5 \pi } { 6 } , \frac { 3 \pi } { 6 }$
D) $\frac { \pi } { 6 } , \frac { 5 \pi } { 6 } , \frac { \pi } { 2 } , \frac { 3 \pi } { 2 }$
E) $\frac { \pi } { 6 } , \frac { 5 \pi } { 6 } , \frac { 7 \pi } { 6 }$