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

Write the complex number in trigonometric form r(c $$r ( \cos \theta + i \sin \theta )$$ ) , with $$\theta$$ in the interval [0 $$\left[ 0 ^ { \circ } , 360 ^ { \circ } \right)$$
- $3 \sqrt { 3 } + 3 i$

A) $6 \left( \cos 30 ^ { \circ } + i \sin 30 ^ { \circ } \right)$
B) $6 \left( \cos 60 ^ { \circ } + i \sin 60 ^ { \circ } \right)$
C) $6 \left( \cos 150 ^ { \circ } + i \sin 150 ^ { \circ } \right)$
D) $6 \left( \cos 330 ^ { \circ } + i \sin 330 ^ { \circ } \right)$