Solve the Equation in the Interval [0°, 360°) $\sin 2 \theta = - \sin \theta$

Multiple Choice

Solve the equation in the interval [0°, 360°) . Give solutions to the nearest tenth, if necessary.
- $\sin 2 \theta = - \sin \theta$

A) $\left\{ 0 ^ { \circ } , 120 ^ { \circ } , 180 ^ { \circ } , 240 ^ { \circ } \right\}$
B) $\left\{ 0 ^ { \circ } , 180 ^ { \circ } \right\}$
C) $\left\{ 0 ^ { \circ } , 60 ^ { \circ } , 120 ^ { \circ } , 180 ^ { \circ } , 240 ^ { \circ } , 300 ^ { \circ } \right\}$
D) $\left\{ 60 ^ { \circ } , 120 ^ { \circ } , 240 ^ { \circ } , 300 ^ { \circ } \right\}$