Write the Complex Number in Trigonometric Form $$r ( \cos \theta + i \sin \theta )$$

Multiple Choice

Write the complex number in trigonometric form $$r ( \cos \theta + i \sin \theta )$$ with θ in the interval [0°, 360°) .
- $- 6 - 6 \mathrm { i } \sqrt { 3 }$

A) $12 \left( \cos 290 ^ { \circ } + i \sin 290 ^ { \circ } \right)$
B) $6 \left( \cos 240 ^ { \circ } + i \sin 240 ^ { \circ } \right)$
C) $12 \left( \cos 180 ^ { \circ } + i \sin 180 ^ { \circ } \right)$
D) $12 \left( \cos 240 ^ { \circ } + i \sin 240 ^ { \circ } \right)$