Find the Trigonometric Form Of $- 5 + 5 \sqrt { 3 } i$

Multiple Choice

Find the trigonometric form of $- 5 + 5 \sqrt { 3 } i$ .

A) $5 \sqrt { 2 } \left( \cos \frac { 2 \pi } { 3 } + i \sin \frac { 2 \pi } { 3 } \right)$
B) $5 \left( \cos \frac { \pi } { 3 } + i \sin \frac { \pi } { 3 } \right)$
C) $5 \left( \cos \frac { 2 \pi } { 3 } + i \sin \frac { 2 \pi } { 3 } \right)$
D) $10 \left( \cos \frac { \pi } { 3 } + i \sin \frac { \pi } { 3 } \right)$
E) $10 \left( \cos \frac { 2 \pi } { 3 } + i \sin \frac { 2 \pi } { 3 } \right)$